Outer Material: Canvas; Inner Material: Waterproof Polyester; 1 Main Compartment; Dimensions: 32 cm x 42 cm x 4 cm (Height x Width x Depth); Closure: Dual Metallic Zip; Shoulder Strap: Removable, Adjustable; Laptop Compatibility: Upto 15.6 inches; External Pockets: 1 with metallic zip closure; Waterproof: Yes Dimensions : 42 cm x 32 cm x 4 cm (L x W x H)