16" x 12" x 5" main compartment 10" x 8" x 1.5" secondary compartment elastic bungee cord system for clothing, etc Quiet zippers, waterproof fabric 1152 Features: -Elastic bungee cord system to hold extra clothes.-Quiet zipper pulls manufactured with waterproof fabric.-Built-in padded carry handle. Dimensions: -Main compartment: 16 H x 12 W x 5 D.-Second compartment: 10 H x 8 W x 1.5 D.-Dimensions: 18 H x 12 W x 1'' D.