Fabric 94% TENCEL™ Modal x Micro Air, 6% elastane Comfort Ultra Soft and Gentle On Skin Enhanced Breathability Long Lasting, Durable, Colour Retention Unfavourable for Bacterial growth, Odor Reduction Sustainable Botanic Origin Biodegradable Ethical and Sustainable Production Uses less energy and water Silktouch is our bestselling collection for men's and women's underwear and lounge wear.Made with the finest modal fibre on the market. TENCEL™ Micro Modal x Air fibre. Air fibre has a diameter of only 0.8 dtex, finer than silk. Its extreme lightness and fineness result in super soft fabric and gentle on your skin. Easy care, great for layering and everyday use. We use Lenzing TENCEL™ fibers for our Silktouch collection. Lenzing is the industry leader in sustainable production leading to less energy usage and water pollution. The botanic origin is 100% natural fiber derived from Austrian beech wood. The TENCEL™ fibers are 100% biodegradable.