A warm garment for cold days. The ultimate layer closest to the body that covers and protects the buttocks and fits perfectly under the ski pants. The material is soft merino wool that breathes well while insulating and keeping you warm. Good fit with smooth elastic at the waist for a soft silhouette. No seams in the sides. 140 GSM Air-Con Single Jersey. 83% merino wool, 13% nylon, 4% elastane.