TENCEL™ Modal
68%Made from beech wood sourced from sustainably managed forests, the secret behind Mellowood’s softness.
- Silky-soft feel
- Highly breathable
- Naturally antibacterial
Free shipping from €45
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Unprecedented premium, maximum durability
2-year quality guarantee on Mellowood
Patented Mellowood fabric: cool, dry, and built to last.

Patented innovation - exclusive to Undiemeister
Our own patented fabric: silky-soft, breathable, and built to last. Mellowood breathes with you and stays fresh, wash after wash.
Made from beech wood sourced from sustainably managed forests, the secret behind Mellowood’s softness.
Grown without chemical pesticides. Gentle, natural, and made to last.
Just enough stretch for a perfect, form-fitting look that holds its shape.
How Mellowood Compares
| Feature | Mellowood | Bamboo viscose | Conventional cotton |
|---|---|---|---|
| Softness | Silky soft, stays soft | It softens, but fades | A stiffer feel |
| Breathability | Breathes all day long | Retains moisture | Less suitable in hot weather |
| Temperature | Regulates coolness and warmth | Does not regulate | Heats up quickly |
| Odour Control | Antibacterial, stays fresh | The smell is building up | The smell is building up |
| Sustainability | Retains its shape and colour | Wears out faster | Fades quickly |
Less packaging, fewer transport movements and fewer logistical operations. This makes our multipacks more efficient and more sustainable. The savings can be as much as 20%, and we are happy to pass these savings on to you.


It all started in 2011 with a simple frustration: everyday underwear was either comfortable or sustainable, but rarely both. So we set out to find something better. When we couldn’t buy it, we made it ourselves.
Years of testing later, Mellowood was born: a perfect combination of TENCEL™ Modal and certified organic cotton. We patented the fabric, and to this day, you’ll find it exclusively at Undiemeister.