Built to protect kids in any weather, our toughest waterproof, windproof and breathable pants keep kids dry. Built with our trusted Helly Tech® Performance technology, these pants are waterproof, breathable and windproof for long-lasting comfort. We used a tough polyamide fabric treated to repel water – the same material we use for professional sailing pants. The little details make a big difference. These pants are fully seam-sealed for extra protection. They feature reinforcements on the seat and knees where the most wear and tear occurs. They have a soft, quick-dry mesh lining. We added reflective elements for 360 degrees of visibility. Articulated knees and a crotch gusset give kids the maximum freedom of movement to do their thing. Both the waist and the pant length are adjustable because we know how quickly kids grow, and when you invest in the best pants, you want them to last.