Flex Nib Fountain Pens

Shop our collection of Flex Nib and Soft Nib fountain pens from brands like Pilot, Aurora, Conklin, Noodler's, Namiki, and more. Soft and flex fountain pens create a unique experience of joyful writing, allowing you to write with a wide range of strokes utilizing a flexible nib at the end of your fountain pen.

Leonardo Fountain Pen Replacement Steel Jowo NibLeonardo Fountain Pen Replacement Steel Jowo Nib
10% OFF

Leonardo Fountain Pen Replacement Steel Jowo Nib

$35.96$39.95

LEO-JOWO-NIB-M-GT

Change up your fountain pen's writing experience with a replacement Leonardo Officina nib. This stainless steel nib is made by Jowo (from Germany) and customized with Leonardo's branding and a slightly larger breather hole...

Noodler's Triple Tail Flex Fountain Pen in Clear Demonstrator - Semi Flex NibNoodler's Triple Tail Flex Fountain Pen in Clear Demonstrator - Semi Flex Nib
20% OFF

Noodler's Triple Tail Flex Fountain Pen in Clear Demonstrator - Semi Flex Nib

$52.20$65.25

ND-13003

Named after the Atlantic Tripletail fish, this triple-tined Noodler's Ink fountain pen is quite the catch. Plus, it doesn't smell like a dead fish! Noodler's built the body and cap from a biodegradable, time-tested...

Leonardo Momento Zero Fountain Pen in NuvolaLeonardo Momento Zero Fountain Pen in Nuvola
10% OFF New

Leonardo Momento Zero Fountain Pen in Nuvola

$179.10$199.00

LE-03560

A family tradition forges ahead. Over 45 years of experience in the field of manufacturing writing instruments, handed down from father to son. Leonardo Officina Italiana draws upon the past to craft a vintage-style...

Leonardo Momento Zero Fountain Pen in Black Sands Limited EditionLeonardo Momento Zero Fountain Pen in Black Sands Limited Edition
10% OFF

Leonardo Momento Zero Fountain Pen in Black Sands Limited Edition

$179.10$199.00

LEO-MZ-BSAN-FP-EF

Italy's breathtaking Amalfi Coast continues to inspire the artisans of Leonardo Officina Italiana. The 2023 "Black Sand" describes the picturesque blue of the Tyrrhenian Sea set against a shimmering black sand beach. To do...

Pilot Custom 743 Fountain Pen in Verdigris (Green) - 14K GoldPilot Custom 743 Fountain Pen in Verdigris (Green) - 14K Gold
20% OFF New

Pilot Custom 743 Fountain Pen in Verdigris (Green) - 14K Gold

$360.00$450.00

P18790

Pilot is excited to announce the coveted Custom 743 to Pilot Corporation of America’s Custom Collection. This gorgeous fountain pen comes in a green resin body with gold accents. The #15 size, 14 karat...

Leonardo Momento Zero Fountain Pen in AlohaLeonardo Momento Zero Fountain Pen in Aloha
10% OFF New

Leonardo Momento Zero Fountain Pen in Aloha

$179.10$199.00

LE-47645

A family tradition forges ahead. Over 45 years of experience in the field of manufacturing writing instruments, handed down from father to son. Leonardo Officina Italiana draws upon the past to craft a vintage...

Noodler's Ahab Fountain Pen in Clear Demonstrator - Flex NibNoodler's Ahab Fountain Pen in Clear Demonstrator - Flex Nib

Noodler's Ahab Fountain Pen in Clear Demonstrator - Flex Nib

$27.75

ND-15021

The Noodler's Ahab flex pen is crafted from a celluloid derivative with its profile inspired by the shape of Ahab's Great White Whale. The stainless steel nib is flexible ranging from a fine point...

Pilot Custom 912 Fountain Pen in Black & Rhodium - 14K GoldPilot Custom 912 Fountain Pen in Black & Rhodium - 14K Gold
19% OFF

Pilot Custom 912 Fountain Pen in Black & Rhodium - 14K Gold

$280.00$350.00

P13923

From a culture that revered the art of writing for more than a thousand years comes an instrument that celebrates both writing and art. In crafting the Custom Heritage 912, Pilot bridges art and...

Noodler's Boston Safety Fountain Pen in Black - Semi Flex NibNoodler's Boston Safety Fountain Pen in Black - Semi Flex Nib

Noodler's Boston Safety Fountain Pen in Black - Semi Flex Nib

$65.25

ND-13001

Since the 1890's, only a "safety fountain pen" has safely used many types of bonded inks that would ordinarily be harmful to other fountain pens, such as committee of safety inks, India inks, gum...

Noodler's Ahab / Konrad Replacement Nib - Vented Flexible

Noodler's Ahab / Konrad Replacement Nib - Vented Flexible

$7.50

ND-18094

The Noodler’s Ahab/ Konrad replacement nibs are compatible with the Noodler’s Ahab and Konrad fountain pens. This nib is vented and flexible. Whether you are looking for the flexible nib that comes with the...

Noodler's Ahab / Konrad Replacement Nib - Untipped Flex

Noodler's Ahab / Konrad Replacement Nib - Untipped Flex

$2.00

ND-18097

The Noodler’s Ahab/ Konrad replacement nibs are compatible with the Noodler’s Ahab and Konrad fountain pens. This nib is untipped and flexible. Whether you are looking for the flexible nib that comes with the...

Leonardo Momento Magico Fountain Pen in Neve D'Inverno Limited EditionLeonardo Momento Magico Fountain Pen in Neve D'Inverno Limited Edition
10% OFF New

Leonardo Momento Magico Fountain Pen in Neve D'Inverno Limited Edition

$202.50$225.00

LE-MAG-NEVE-ST-EF

Snow casts a magical spell that turns a cold, dark winter's night into a wonderland of white. In this 2024 limited edition collaboration, Leonardo captures the beauty and grace of a soft snowfall in...

Leonardo Momento Magico Fountain Pen in PithecusaLeonardo Momento Magico Fountain Pen in Pithecusa
10% OFF New

Leonardo Momento Magico Fountain Pen in Pithecusa

$202.50$225.00

LE-01672

Every pen enthusiast knows that when they've found the right pen, the moment the nib touches paper is like magic. This experience is the focus of Leonardo Officina's collection, called the "Momento Magico." After...

Noodler's Ink Creaper Fountain Pen in Clear Demonstrator - Flex NibNoodler's Ink Creaper Fountain Pen in Clear Demonstrator - Flex Nib
0% OFF

Noodler's Ink Creaper Fountain Pen in Clear Demonstrator - Flex Nib

$23.00$23.10

ND-17000

The Noodler's Ink Piston Fill flex nib fountain pens are a classic 1960s design made from a celluloid/organic derivative. Each pen is uses a piston-filling mechanism and is made of the same material used...

Noodler's Ink Konrad Fountain Pen in Wendigo Acrylic - Flex NibNoodler's Ink Konrad Fountain Pen in Wendigo Acrylic - Flex Nib

Noodler's Ink Konrad Fountain Pen in Wendigo Acrylic - Flex Nib

$47.75

ND-14086

The Konrad is a piston-fill fountain pen that is fitted with the Noodler's stainless steel flexible #6 nib. Expect variation in each pen body due to the nature of the material each pattern is...

Leonardo Momento Zero Grande 2.0 Fountain Pen in Sea AnemoneLeonardo Momento Zero Grande 2.0 Fountain Pen in Sea Anemone
6% OFF New

Leonardo Momento Zero Grande 2.0 Fountain Pen in Sea Anemone

$265.50$295.00

LEO-MZG2-SEA-FP-SS-M

For discerning writers who prefer an oversized fountain pen, the Momento Zero Grande provides ample size and performance to match. The Grande 2.0 is an evolution of the species. In this latest iteration, Leonardo...

Pilot Falcon Fountain Pen in Black & Gold - Soft FlexiblePilot Falcon Fountain Pen in Black & Gold - Soft Flexible
20% OFF

Pilot Falcon Fountain Pen in Black & Gold - Soft Flexible

$208.00$260.00

P60252

Soar to new writing heights with the Pilot Falcon. Sleek in its unique style, this jet black fountain pen is a remarkable feat of engineering and elegance. This collection is a festive celebration of...

Pilot Falcon Fountain Pen in Resin Purple - 14K Gold Soft Flexible NibPilot Falcon Fountain Pen in Resin Purple - 14K Gold Soft Flexible Nib
20% OFF

Pilot Falcon Fountain Pen in Resin Purple - 14K Gold Soft Flexible Nib

$208.00$260.00

P15661

Exclusive to the Falcon line in the United States. Both colors are rich jeweled-tones; a vivid marine blue and a vibrant plum purple. Whether you are a patron or new to the Falcon series,...

Leonardo Momento Zero Grande 2.0 Fountain Pen in Baobab Spaghetti ResinLeonardo Momento Zero Grande 2.0 Fountain Pen in Baobab Spaghetti Resin
6% OFF New

Leonardo Momento Zero Grande 2.0 Fountain Pen in Baobab Spaghetti Resin

$265.50$295.00

LEO-MZG2-BAO-FP-SS-M

For discerning writers who prefer an oversized fountain pen, the Momento Zero Grande provides ample size and performance to match. The Grande 2.0 is an evolution of the species. In this latest iteration, Leonardo...

Leonardo Momento Zero Fountain Pen in Angel SkinLeonardo Momento Zero Fountain Pen in Angel Skin
10% OFF New

Leonardo Momento Zero Fountain Pen in Angel Skin

$179.10$199.00

LE-06295

A family tradition forges ahead. Over 45 years of experience in the field of manufacturing writing instruments, handed down from father to son. Leonardo Officina Italiana draws upon the past to craft a vintage...

Edison Newark Fountain Pen in Patent Pending Pink LEEdison Newark Fountain Pen in Patent Pending Pink LE
10% OFF New

Edison Newark Fountain Pen in Patent Pending Pink LE

$179.10$199.00

ED-202407-EF

Feel inspired to create the next great invention with this bright and optimistic Edison Pen Co. fountain pen. We named this latest limited edition pen "Patent Pending Pink" as a tongue-in-cheek reference to Edison's...

Leonardo Momento Magico Fountain Pen in Venus DreamLeonardo Momento Magico Fountain Pen in Venus Dream
10% OFF New

Leonardo Momento Magico Fountain Pen in Venus Dream

$202.50$225.00

LE-04222

The "Sogno di Venere" (Venus Dream) expresses the breathtaking love and beauty that the goddess represents. For this piston-filling fountain pen, Leonardo weaves the sweetness of pink with delicate white, crafting a dreamy chromatic...

Noodler's Boston Safety Fountain Pen in Chestnut - Semi Flex NibNoodler's Boston Safety Fountain Pen in Chestnut - Semi Flex Nib

Noodler's Boston Safety Fountain Pen in Chestnut - Semi Flex Nib

$65.25

ND-13002

Since the 1890's, only a "safety fountain pen" has safely used many types of bonded inks that would ordinarily be harmful to other fountain pens, such as committee of safety inks, India inks, gum...

Noodler's Ink Konrad Fountain Pen in Clear Demo - Flex NibNoodler's Ink Konrad Fountain Pen in Clear Demo - Flex Nib

Noodler's Ink Konrad Fountain Pen in Clear Demo - Flex Nib

$23.75

ND-14005

The Konrad is a piston-fill fountain pen that is fitted with the Noodler's stainless steel flexible #6 nib. Expect variation in each pen body due to the nature of the material each pattern is...

Noodler's Ink Konrad Fountain Pen in 1820 Essex - Flex NibNoodler's Ink Konrad Fountain Pen in 1820 Essex - Flex Nib

Noodler's Ink Konrad Fountain Pen in 1820 Essex - Flex Nib

$23.75

ND-14047

The Konrad is a piston-fill fountain pen that is fitted with the Noodler's stainless steel flexible #6 nib. Expect variation in each pen body due to the nature of the material each pattern is...

Noodler's Ahab / Konrad Replacement Nib - Untipped Non-flex

Noodler's Ahab / Konrad Replacement Nib - Untipped Non-flex

$2.00

ND-18096

The Noodler’s Ahab/ Konrad replacement nibs are compatible with the Noodler’s Ahab and Konrad fountain pens. This nib is untipped and non flex. Whether you are looking for the flexible nib that comes with...

Noodler's Neponset Fountain Pen in Rebellion Red - Music NibNoodler's Neponset Fountain Pen in Rebellion Red - Music Nib

Noodler's Neponset Fountain Pen in Rebellion Red - Music Nib

$89.00

ND-12044

Inspired and named after one of the first airships built in the early 20th Century, the Neponset has a grand shape and size, making it the biggest of the Noodler's fountain pens. This pen...

Noodler's Ink Creaper Fountain Pen in Truk Lagoon - Flex NibNoodler's Ink Creaper Fountain Pen in Truk Lagoon - Flex Nib

Noodler's Ink Creaper Fountain Pen in Truk Lagoon - Flex Nib

$18.50

ND-17065

The Noodler's Ink Piston Fill flex nib fountain pens are a classic 1960s design made from a celluloid/organic derivative. Each pen is uses a piston-filling mechanism and is made of the same material used...

Noodler's Ink Konrad Fountain Pen in Qufu Jade - Flex NibNoodler's Ink Konrad Fountain Pen in Qufu Jade - Flex Nib

Noodler's Ink Konrad Fountain Pen in Qufu Jade - Flex Nib

$23.75

ND-14046

The Konrad is a piston-fill fountain pen that is fitted with the Noodler's stainless steel flexible #6 nib. Expect variation in each pen body due to the nature of the material each pattern is...

Noodler's Ahab Fountain Pen in Pink Tiger - Flex NibNoodler's Ahab Fountain Pen in Pink Tiger - Flex Nib

Noodler's Ahab Fountain Pen in Pink Tiger - Flex Nib

$27.75

ND-15038

The Noodler's Ahab flex pen is crafted from a celluloid derivative with its profile inspired by the shape of Ahab's Great White Whale. The stainless steel nib is flexible ranging from a fine point...

Magna Carta MAG 650 Fountain Pen in Malachite - 14kt Gold Flex NibMagna Carta MAG 650 Fountain Pen in Malachite - 14kt Gold Flex Nib
New

Magna Carta MAG 650 Fountain Pen in Malachite - 14kt Gold Flex Nib

$450.00

MC-MAG-650-MALACHITE

Drawing inspiration from highly sought-after vintage writing instruments of the 1940's and 50's, the Magna Carta MAG 650 combines a soft, flexible writing experience with appealing stacked resin in a comfortable, tapered profile. In...

Magna Carta MAG 650 Fountain Pen in Cyanic - 14kt Gold Flex NibMagna Carta MAG 650 Fountain Pen in Cyanic - 14kt Gold Flex Nib
New

Magna Carta MAG 650 Fountain Pen in Cyanic - 14kt Gold Flex Nib

$450.00

MC-MAG-650-CYANIC

Drawing inspiration from highly sought-after vintage writing instruments of the 1940's and 50's, the Magna Carta MAG 650 combines a soft, flexible writing experience with appealing stacked resin in a comfortable, tapered profile. In...

Frequently Asked Questions

What is a flex nib fountain pen?

Fountain pens that write with flexible nibs provide calligraphic flair to your handwriting. A flex nib is able to change the line width of your pen stroke by applying gentle finger pressure to the nib, which then opens the gap between the tines, yielding a broader line. Then, when pressure is released, the nib springs back into its original position, writing with a thinner line.

What is the best flex nib fountain pen for a beginner?

To get a taste of the flex nib writing experience on a budget, we suggest first trying a dip pen nib holder with a Brause Blue Pumpkin Steno nib. The Steno nib has plenty of flexibility with a super fine, unflexed line. The only drawback is that you have to continually dip the Blue Pumpkin nib as you write. There aren't any self-filling pens that use this nib. For a starter flex nib fountain pen that can be refilled, we suggest a Noodler's Triple Tail. The three-tined steel nib has ample flexibility, an ebonite feed that keeps up, and a piston-pump ink filling system. Plus, unlike many of the cheaper Noodler's pens on the market, it doesn't have "the smell!"

Who makes the best flexible nibs?

Presently there are a number of manufacturers producing a flexible nib fountain pen - Conklin Omniflex, Noodler's Ahab/Konrad, Pilot Falcon, Pilot FA nib, Scribo "Feel the Flex" nib, and Jowo elastic nib, to name a few. The "best" flex nibs provide an ample amount of line variation with a feed that can keep up with the rapid flow of ink. Presently, the SCRIBO 14kt gold "Feel the Flex" nib with ebonite feed is the best gracefully flexing without railroating or skipping.

How do you write with a flex nib fountain pen?

Writing with a flex nib fountain pen is slightly different than using a standard fountain pen. However, you could write with a flex nib pen the same way you would a standard fountain pen nib. You just won't get the line variation. To engage the nib's flexibility, apply a gentle amount of finger pressure to the nib on the downstroke (ONLY!). Stroke the nib downward like you would a paintbrush. It will take some time to find the right amount of pressure and speed. Just make sure not to apply pressure on the tines when moving the nib side-to-side or on the upstroke. Find more details on how to write with a flex nib fountain pen here.

Which types of ink should I use with a flex nib fountain pen?

Flex nib fountain pens require a higher ink flow demand than standard nibs. A flex nib with an ebonite feed is an ideal combination for the most consistent flow. However, you'll want to pay attention to your ink choice when using flexible nibs. Drier inks (like most undersaturated, pale ink colors, and super sheeny inks) might be the cause of skipping or railroading when spreading the flex nib's tines. We recommend wetter, well-lubricated inks for an optimal writing experience.

Do you need to "break in" flex nibs?

In short, no. Flex nibs, even a 14kt gold ones, do not need to be prepared or broken in when you first use the fountain pen. The fountain pen should provide the same amount of flexibility from day one to day 365 and beyond.

What are the characteristics of a flex nib fountain pen?

1. Flex nib fountain pens yield line variation that is proportional to the softness of the nib and the amount of finger pressure applied on the downstroke.
2. A flexible nib is usually made from a 14kt gold alloy. However, there are a number of "elastic" style nib options made in stainless steel that are more affordable options for flex.
3. The amount of line variation a flex nib provides vary based on the nib design and material.
4. Flexible nibs have a geometry different than standard nibs, with cutouts and a shape that is better suited to flex.

How do I troubleshoot flex nibs?

Most issues with flex nibs arise from insufficient ink flow. When you apply pressure to the nib, the tines open and lay down ink. So, the feed needs to keep up with this rapid demand of ink.
What is most common is "railroading," when the surface tension of the ink breaks, resulting in two lines spread apart from each other and nothing filled in between. If this happens frequently, it could mean a few things:
The writer is pushing the flex too far.
The writer is flexing too quickly.
The ink is too dry / to viscous to provide adequate flow
To remedy railroading, first see if slowing down and not pressing down as hard on the downstroke improves the consistency. If it does not, then switch out the ink to one that is more lubricated (wetter flow).
If no ink flow is present at all, it might be possible the flex nib was pushed too far and the nib is now "splayed." If there is an excessive gap between the tines, ink will no longer reach the tip of the nib. If you have a splayed nib, a nib meister should be able to adjust it to get writing better than ever.