Undyed Merino Wool Long Johns for Men

These undyed merino wool long johns are designed for those who work with natural and plant-based dyes and value natural comfort. Made from 100% merino wool, they are completely undyed, untreated, and free from chemicals, providing a clean and neutral base for natural dyeing. Merino wool absorbs natural dyes evenly, resulting in soft, balanced, and long-lasting colors.

They can be worn in their natural state or dyed before use. After dyeing, they function as a breathable, temperature-regulating thermal base layer suitable for everyday wear in cooler conditions. Designed for men, this garment is fully compatible with traditional natural dyeing methods using plant-based dyes and mineral mordants, making it ideal for artisans, workshops, and individuals who want to dye and wear their own naturally colored garments.

Care: Hand wash recommended or machine wash cold (max. 20–27°C). Do not tumble dry. Do not bleach. Lay flat to dry.

This undyed garment can be worn as-is or dyed using natural and plant-based dyes. You can explore our Natural Dyes and Mordants collection to select suitable dyes and mordants.