WRITING LAB. Vintage Denim fountain pen ink brings the timeless look of well-worn denim straight to your paper. This original ink is a collaboration with River Mail, a stationery and Indian jewelry shop based in Yamashina. Japan's fountain pen culture is famous worldwide, where subtle shifts in hue turn ordinary handwriting into something closer to art.
Formulated with high quality dyes, this shade recreates the deep indigo blue and subtle unevenness of vintage denim. It writes dark, but still shades beautifully as the ink flows from your pen, giving each line real depth and character.
Each bottle holds 50ml and comes in a classic octagonal glass bottle. Future releases will switch to a different bottle shape, so this octagonal edition is a one-time design worth adding to your fountain pen desk setup. There's no confirmed date for the next restock, and orders are limited to two bottles per customer, so it's worth grabbing now if the color speaks to you.
WRITING LAB. Vintage Denim fountain pen ink, created in collaboration with River Mail. This 50 ml ink expresses the deep indigo color and uneven tonal character of vintage denim. Made with high-quality dye, it is a dark ink with visible shading. Supplied in the pictured octagonal bottle.



