Bogs Women's Rider Emboss Fashion Rain Boot 100% Rubber and synthetic Rubber sole Shaft measures approximately 16" from arch Heel measures approximately 0.75" Boot opening measures approximately 15.75" around 100% WaterproofMolded EVA sockliner with Aegis anti-microbial protection Durable hand-lasted rubber over a four way stretch inner bootie Constructed with 5mm waterproof Neo-Tech +1mm fleece lining to keep you warm Low-profile outside heel Non-slip, non-marking and self-cleaning deep lug outsole