Excellent thermal regulation: 250g, 55% Merino wool/45% polyester blend for warmth, thermal regulation, and comfort, 100% Merino wool inner layer for next-to-skin comfort; 100% polyester exterior for quick-dry layering, Moisture-wicking, breathable and odor-resistant for multi-day use, Seamless construction with crotch gusset for unrestricted riding mobility, Sustainable design, ideal as a base layer for both riding and daily casual wear, Full seamless construction with crotch gusset for maximum riding freedom, 4 cm elastic waistband featuring signature Alpinestars branding, Functional fly opening for practical use. Ankle length