5MM neoprene/nylon thickness for comfort and warmth. PVC coated palms and fingers for durability. Velcro closure wrist strap provides maximum adjustment. Sizing adjusted for men (mens small = womens medium, etc). The gloves you receive may or may not have the Tilos logo on them. Model #G5331. These warm Tilos Gloves are great for scuba diving and snorkeling.