High quality neoprene material Waterproof and anti collide Keep cool/warm 4hours OEM design Thickness:2mm~5mm,Fashionable Use high quality neoprene materialSoft and comfortable fabricThickness :2mm~5mmWaterproof and anti collideDurable and reusable,safe and nontoxicKeep cool or warm more than 4 hoursSimple but fashionable design The color, size ,drawing as your ideaSilkscreen printing or heat ...