High quality neoprene material Waterproof and anti collide Keep cool/warm 4hours OEM design Thickness:2mm~5mm,Fashionable Using high quality neoprene materialSoft and comfortable fabricThickness :2mm~5mmDurable and reusable,safe and nontoxicKeep cool or warm more than 4 hoursSilkscreen printing or heat transfer printing your logoFit for wine,beer,water bottleGreat for products promotion, outdoor ...