Best Flex Nib Fountain Pen

best Flex Nib Fountain Pen

If you’re into fountain pens you’ll know that finding the best flex nib fountain pen is not easy. The majority of nibs in the mystical world of fountain pens write with the same line width every time.

Unlike traditional steel-nibbed calligraphy dip pens, flex nib fountain pens give you a great amount of line variation which helps your writing pop.

To help you choose the best flex pens to add to your collection, we go over the best flex nib fountain pens, highlighting the benefits and drawbacks.

7 Best Flexible Nib Fountain Pens (Our Review)

Franklin Christoph Model 66 Stabilis

Model 66 Stabilis FP

The Model 66 Stabilis is a long, clipless desk pen with a modern design. The pen’s whole exterior is smooth and has a cylindrical cigar-shaped body. The body has a flat end carved into its length, making a platform that keeps the pen from rolling around on your desk.

The Model 66 has a small cap that’s only just long enough to cover the nib. This makes posting the pen a little tricky as the cap sticks too far out the back and throws off the balance of weight.

Unlike most fountain pens, this one is more comfortable to use unposted.

The clear acrylic cap and body make the inner workings of the pen completely visible, which adds a nice touch of personalization. It’s not often you get to work with a pen and see everything going on inside.

The Franklin Christoph pen has a #6-sized Jowo nib unit with a unique alloy and form that allows for greater flexibility. This works in conjunction with the flex nib to give you some of the biggest and, more importantly, easily achieved line variation of any pen we’ve seen.


  • Great for daily writing
  • Doesn’t need much pressure
  • Quick dry
  • Affordable


  • Less precise than a hard nib

Jinhao X450

JINHAO X450 Fountain Pen M Nib Brand New (Red Ice)
  • Nib:M (steel nib); Length:138mm; Diameter:14mm; Net weight:45g
  • Cap:push type; Converter:screw type(you also can buy the jinhao ink cartridges in my shop for this pen, ASIN is B06WRRGKH1)
  • Quantity:1pcs come with a converter(ink pump, fit for bottled ink), NO ink, NO gift box
  • If any problems caused(like did not receive or pen did not work), please don't hesitate to contact us, we will try our best to help you solve the problems

This fountain pen comes in a range of colors and finishes. There are also two matte black and blue whirlwind springs available. A spiral pattern wraps around the handle of the blue curl, which has a glossy surface.

The golden strokes and two-tone tips are the same on both wings. The grip is a normal cigar-shaped nib with a more rounded lid at one end than the other.

The pen’s cap is friction-fitted with a cap that you can nap on and off. It also opens and shuts with a pleasant pop. The nib that comes with the pen is a lovely gold-plated medium nib. It won’t be too dry because it’s a real western Medium, and the feed will function nicely.

The moment you look at the pen you’ll notice it’s enormous size.This should appeal to anyone with large hands who desire a more secure grip. However, individuals with little hands who like lighter pens may find it inconvenient to use.

The pricing of this flexible nib fountain pen is a pleasant surprise. This low cost fountain pen is well worth the money because it’s the greatest budget fountain pen available.


  • Comfortable grip
  • Easy to use
  • affordable


  • Heavy

Noodler’s Konrad Fountain Pen

The Noodler’s Konrad fountain pen has a piston fill mechanism and a #6 steel flex nib. It has a ripple design on its barrel and a cap on its end.

The flex nib lets you draw lines of various widths. The Noodler’s Konrad flex nib fountain pen is a fantastic alternative for novices who want to try a flex nib pen.

The pen is finished with a black cap with chrome embellishments. The pen’s cap can be unscrewed. You are free to post and unpost the cap.

This is a piston-design fountain pen, therefore it features a see-through viewing window to see the ink level, followed by a black grip part with cap threads and a simple Ink flex nib, which is made of stainless steel.

Because it’s a piston-design pen, you can add ink by unscrewing the cap and twisting a little knob to extract the piston and fill the pen with ink.

The twist piston filling mechanism is the Konrad’s main selling point. There’s no need to be concerned about having additional parts to clean. The pen keeps the ink right inside of its body and allows you to disassemble it simply by twisting the mechanism out of the pen’s back.


  • Easy to use
  • Inexpensive
  • Many colors and designs


  • Strange smell initially

Noodler’s Nib Creaper Flex

Noodler's Ink Nib Creaper Standard Flex Fountain Pen - Hudson Bay Fathom's Blue by Noodler's
  • Genuine Noodlers Branded Quality
  • Stainless Steel Flex Nib Fountain Pen
  • Clear Blue Body & Cap
  • Piston Filling System for Bottled Ink
  • Windowed Ink Compartment - Celluloid Fountain Pen

This clear Noodler’s Nib Creaper flex fountain pen has a compact, slim body with a piston mechanism that houses a steel flexible #2 nib. The pen is made from celluloid, which produces beautiful pens.

What you’ll appreciate about the pen is that when the ink runs out, it’ll never come as a surprise.The pen has a little ink window which indicates how much ink is left.

The Noodler’s flex pens are meant to be disassembled and altered,so you can adjust the pen to your liking. The nib and feed are easy to remove and change. You can heat set your pen, this will help with dryness and railroading.

When writing with a flex pen, the golden rule is to use light pressure on the downstrokes, which will stretch the tines and widen the line., resulting in the desired line variation.


  • Lightweight and comfortable
  • Available in a lot of colors
  • Good for beginners


  • Maybe small for big hands.

Noodler’s Ahab Flex Nib Fountain Pen

Noodler's Ahab Flex Nib Fountain Pen - Ivory Darkness White And Black, Fine Nib 15028
  • Genuine Noodlers Branded Quality
  • Black/White Grain Body & Cap
  • Fountian pen
  • Piston Filling System for Bottled Ink
  • Takes any fountain pen ink

This pen is amongst the best vintage flex pens on the market. It’s designed to give you the best writing and calligraphy experiences possible. It is still the greatest among many flexible fountain pens because of so many expected qualities that make your writing wonderful.

The Noodler’s Ahab is strong in the sense that all of its pieces fit together snugly and there is no jiggling or squeaking. The pen can be posted or unposted, and both are comfortable to write with.

The pen has a fantastic look and feel to it. There are 48 distinct color options available as of last count, so no matter what your own taste is, you’ll find something that appeals to you. The body is built of a celluloid derivative that feels strong and robust while being virtually soft to the touch.

You can customize this pen. The nib and feed are friction-fit, allowing the user to modify the feed’s location to suit their needs. You can make the pen wetter or drier to your preference.

Finally, if you don’t want a flexible nib, the pen can accommodate a variety of nibs.


  • Ink is replaceable
  • Bottled fountain pen ink contains a piston filling system


  • Made from plastic

Luxury Brands Noodler’s Ahab Flex Nib Fountain Pen

The Ahab Noodler, like the rest of the Noodler flexible family, is a fantastic introduction to the universe of fountain pen flex nibs. If you’re a beginner, you’ll find it to be a comfortable modern flex nibs fountain pen which is suitable for calligraphy, art, calligraphy, and even regular writing.

The pen’s built-in filling system works by twisting a portion of the pen, causing it to suck ink into the barrel via the nib. This is a common technique for filling non-cartridge fountain pens.

This pen is relatively inexpensive, despite its traditional shape and steel flex nib. The pen is made from a celluloid derivative, so it’s technically biodegradable. The pen is well-balanced and well-designed.


  • Easy filling technique
  • Holds a lot of ink
  • Good quality


  • May have bad smell

Konrad Flex Nib Apache Tortoise

Noodler's Konrad Flex Fountain Pen

This high-quality fountain pen features a piston filling method and a conventional appearance with dull edges, a metallic center strip, and a clip. To access the rotating piston handle, remove the screw plug cover.

A transparent plastic with an open ink window in a blend of orange, yellow, and gold that darkens like deep amber. It does, however, fluctuate from bright to dark, but it’s still rather lovely. There are also a variety of hues to choose from.

The Konrad Flex Apache Tortiose pen is small and simple to use. It has a good balance and isn’t overly smooth in the handle area.


  • Good quality
  • Good balance


  • Small pen, won’t suit larger hands

Final Thoughts

When you decide to buy a flexible nib fountain pen, you’ll have to sort through a plethora of possibilities to locate the perfect one. It’s because the market provides a large selection of the best flex nib pens.

Modern flex nibs give you so much more freedom as a writer than a traditional pen nib. The pens on this list are the best flex pens available on the market today, and they all come at a reasonable price to boot.

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