Design: Constructed with 5mm Neo-Tech waterproof insulation 100% waterproof protection Made with seamless construction 30% lighter and more durable for comfortable all-day wear Easy on handles for kid friendly on and off Heel Lock prevents heel slip and ensures optimal fit Reflective temperature rating mark on heel In-Shoe Comfort: Rebound cushioning provides all-day comfort and energy return BLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitats Durability & Traction: BioGrip slip-resistant outsole for reliable traction in wet conditions Additional Details: Comfort rated to -35°F/-37°C DuraFresh natural bio-technology activates to fight odors