840D nylon outer shell Imported 840D DOUBLE COATED TPU - Puncture-resistant material stands up to the hard knocks of outdoor use EASY TO CARRY - Lightweight design with padded shoulder straps allow for ultimate portability and versatility (8. 5 Liter capacity) COMPRESSION MOLDED BASE - For increased structure and durability LEAK RESISTANT ZIPPER - Our zipper comes complete with a waterproof seal, keeping the ice and contents where they belong INSULATED INNER WALLS - High density closed cell foam for extreme insulation