Multi-function shoulder shoulder bagAnti theft women backpacks ladies large capacity backpack high quality bagpack waterproof Oxford women backpack sac a dos Specifications: 1. Outside material: Nylon 2. Inside material: Poliyester. 3. Size: length 30cm thickness 17cm high width 30cm. Note: 1 inch = 2. 54 cm, 1cm = 0. 39 inch Due to the difference in the measurement method, please allow 1 2cm in size deviation.