Merrell Women's Siren Breeze Leather 100% Leather Rubber sole Strobel Construction - Offers flexibility and ultimate comfort. Nubuck and Pig Suede Upper - This soft, comfy and waterproof material is designed for super soft comfort. Bellows Tongue Cover - Protection from mud and debris from getting inside the shoe. Ortholite anatomical footbed - Combines a specific ortholite foam and Air cushioning to help improve comfort and fit. EVA Removeable footbed - Designed to provide decent comfort underneath your feet.