TWSBI ECO Fountain Pens - A Special Edition History
A visual look back at all of the new TWSBI ECO (and ECO-T!) fountain pens, including special and regular editions that have been available in the United States.
The TWSBI ECO fountain pen is one of our best selling fountain pen models and for good reason – fans love its modern design, large ink capacity with the built-in piston filling mechanism, reliable steel nibs, and affordable price. The frequent release of new colors makes it a popular collector's item.
February 2025: Espresso w/ Bronze
This TWSBI ECO in Espresso w/ Bronze is every coffee lover’s dream—rich in value, bold in design, and smooth in performance. This crystal-clear demonstrator pen has a dark brown cap and finial that give it a roasted coffee bean aesthetic, while bronze trim and a bronze-colored stainless steel nib add the perfect creamer-like finish. With Espresso w/ Bronze, every word flows as smoothly as your favorite pick-me-up!
December 2024: Amazonite
This TWSBI ECO in Amazonite is a groundbreaking addition to the ECO collection! It features a marbled green cap and finial with an intricate swirl design, a first for the series made possible by a new coloring technique in the injection molding process. This innovative method produces unique patterns and colors, ensuring every pen is truly one of a kind. It's complemented by sleek silver trim and a silver stainless steel nib.
October 2024: Sky Blue
Similar to the Cerulean, Pastel Blue, and Blue ECOs, the Sky Blue ECO is a cool-toned beauty with a calming, baby-blue opaque cap and piston knob. This vibrant blue shade, however, doesn’t lean toward violet or teal like the other Blue ECOs. Sky Blue is adorned with sleek silver trim and a matching steel nib.
September 2024: Irish Green w/ Onyx
A new first for TWSBI! The Irish Green ECO features a dark green opaque cap and piston knob, with an Onyx black trim and nib.
June 2024: Eggplant Purple
The TWSBI ECO-T in Eggplant Purple is a more opaque version of the ECO Transparent Purple, this time featuring the triangular ECO-T shape.
April 2024: Caffè w/ Bronze Trim
Wake up and smell the coffee with the TWSBI ECO in Caffè w/ Bronze Trim. This energizing fountain pen boasts a bronze trim that beautifully highlights its creamy coffee brown cap and piston knob.
March 2024: Dark Sapphire
Dive into the TWSBI ECO in Dark Sapphire! This ECO features an intense ocean blue-colored cap and piston knob, perfectly complemented by sleek silver trim.
December 2023: Creme w/ RoseGold
The TWSBI ECO in Creme w/ RoseGold flaunts an exquisite rose gold colored trim that complements its serene off-white cap and piston knob. Its dreamy aesthetics makes this pen perfect for writing some fantastical stories!
October 2023: Rosso
This TWSBI ECO-T in Rosso features a bright candy apple red cap and piston knob with the ECO-T triangular grip.
August 2023: Indigo Blue with Bronze Trim
The TWSBI ECO in Indigo Blue with Bronze Trim ushers in a new trim and body color for the ECO. The bronze is slightly darker than the rosegold of other models and nicely complements the deep blue coloration.
June 2023: Heat
This TWSBI ECO fountain pen in Heat is a bright fiery orange coloration that is darker and more vibrant than Saffron and Yellow of years past. A perfect summer companion.
March 2023: Persian Green
This TWSBI ECO fountain pen in Persian Green is very similar in color to the Turquoise ECO from 2017, maybe just a tad more green. It definitely has a "teal" vibe to it.
February 2023: Saffron
This TWSBI ECO-T fountain pen in Saffron features an opaque yellow-orange cap and piston knob, with the triangular grip for which the ECO-T is known.
December 2022: Royal Jade Rosegold
The most expensive ECO to-date, this special edition TWSBI ECO-T fountain pen features a solid green cap and piston knob, and a clear barrel. The pen is also equipped with a rose-gold plated steel nib, rose gold-plated trim, and even a rose gold-plated piston rod. Finally, an 18ml bottle of TWSBI Midnight Blue fountain pen ink is included, all set in a gift box.
October 2022: Glow Purple
Continuing off of the success of the GLOW Green, this TWSBI ECO fountain pen in GLOW Purple does just that -- the light purple cap and piston knob both glow blue in the dark!
Purple under normal light
Glowing blue in the dark
September 2022: Cerulean
The TWSBI ECO fountain pen in Cerulean Blue features a solid bright blue cap and piston knob.
August 2022: Glow Green
The TWSBI ECO in Glow Green is the first ECO to feature a cap and piston knob that illuminate the dark! Experience the eerie charm of this green-glowing, spine-tingling writing tool, perfect for conjuring up spooky Halloween tales!
June 2022: Transparent Yellow
The TWSBI ECO in Transparent Yellow is a true Demonstrator fountain pen, featuring a translucent yellow cap and piston knob that allow you to see every single part of the pen's mechanics.
December 2021: Jade
May 2021: Lilac
August 2020: Cement Grey
March 2020: Yellow
January 2020: White RoseGold
The TWSBI ECO in White RoseGold features a crisp white cap and piston knob, making it an elegant addition to your fountain pen collection. Accentuated with rose gold trim and a rose gold-plated steel nib, White RoseGold is sure to elevate your writing experience.
December 2019: Mint Blue
This TWSBI ECO-T in Mint Blue features a solid pastel mint blue-colored cap and piston knob. Additionally, its triangular grip section provides a secure hold on the pen.
Septemer 2019: Transparent Purple
The TWSBI ECO in Transparent Purple sports a translucent purple cap and piston knob. This cool-toned pen is perfectly complemented by silver trim and a stainless steel nib.
July 2019: Coral
April 2019: Transparent Orange
December 2018: Transparent Green & Transparent Blossom Red
December 2018: Pastel Blue & Pastel Pink ECO
These two colors were originally exclusives to Asia before they hit the US market.
September 2018: Transparent Blue
Now a regular edition, the TWSBI ECO in Transparent Blue still one of the most popular ECO colors!
May 2018: Pink
March 2018: YellowGreen
November 2017: Blue
August 2017: Turquoise
October 2016: Lime Green
To view more of our special edition history blogs, click here.
