The Tuvegga pants have two sides: one smooth, making the pants suitable for activities where breathability is most important. The other side has a textured surface, which allows more air to accumulate between the skin and fabric. This makes the pants warmer. The base layer works according to the nature of your activity and the outside temperature. Turn the smooth side against your skin for warmer weather and more intense activity. For extra warmth, wear the textured side against your skin, making the pants better suited for colder weather or when you're not moving much. - Main material: 99% merino wool and 1% elastane - Contrast stripes: 100% merino wool - Fabric weight: 250 g/m² - Fiber thickness: 18.7 microns (fine fiber) - Machine washable on wool program Devold undergarments are treated with a natural compound made to protect the apparel from wool-eating insects. It has a gentle, citronella-style scent and is completely harmless to people. The treatment protects the garment for