Made of TPR Materials with Excellent Air Permeability & Non-slip Resistance. the Soles Also Can be Bent at Will. Thick & Non-slip Soles Are Made of Rubber. Unisex. Ideal for Beach Swimming, Surfing, Pool, Sailing, Water Park, Boating, Kayaking, Beach Volleyball, Fishing, Walking, Car-washing, Vacation, & Yoga, Minimum Quantity: 100.