Keep the style casual and your legs both warm and dry with the boys' Burton Barnstorm Pant. DRYRIDE two-layer fabric with fully-taped seams provides a barrier against snow and other moisture, while Thermacore insulation provides reliable all-winter warmth, and there's still plenty of room to layer. The Room-to-Grow system allows limbs to expand at the seams to outlast growth spurts. This pant is a bluesign product, which means it's approved to meet the highest safety standards for both people and our planet.