High quality NBR material,waterproof Keep cool or warm more than 4hours OEM design Color,size,thickness,shape as you require 1.High quality NBR material(the wetsuit material)2.Simple but beautiful design for your enjoyment3.Waterproof,durable and reusable4.Easy to clean and carry5.Keep cool or warm more than 4 hours6.Great for products promotion ,gifts,bar,home,outdoor activity7.Heat-resistant ...