For Cold Or Wet Things I'm Designed, My Inside Walls Are Fully Lined Insulated Tote with 2 compartments. Two fully insulated compartments allow you to organize the contents. Front slip pocket and side mesh pocket for additional storage. Zippered closure and leak proof liner ensures content stays fresh and cool. 600 Denier polyester with PEVA liner. Top compartment has heat sealed liner. If your bringing beverages down to the beach, or bringing sandy, wet items back your car, this is perfect!