100% Merino Wool specifically utilizing a mid-weight 250g fiber for insulation. Features: Construction: Seamless shoulders designed for enhanced comfort and reduced chafing. Fit: Form-fitting "3D" cut meant to be worn directly against the skin. Function: Highly breathable and moisture-wicking to keep the wearer dry during active winter use. Protection: Offers a UPF 50+ sun protection rating. Performance Use This garment is specifically designed as a base layer, acting as a "second skin" to insulate and wick sweat during outdoor activities like skiing. It is intended to be the foundation of a layering system for cold-weather comfort. Lots of stretch, NOTE- there is some pilling. Pit to pit-16” Waist-14” Width at hem-16” Length-26.5” (Measurements appx.- Flat Lay)