Skull stud backpack $ 35.90 Capacity: 20-35L Bag internal structure: zipper pocket, mobile phone bag, ID bag, computer pocket Opening method: zipper Material: PU leather Function: waterproof, wear-resistant, anti-theft, anti-vibration, lightening Processing methods: soft surface Hardness: Soft Pattern: Character Lining texture: polyester Accessories type: buckle Strap root number: double root Popular elements: rivet Lifting parts: soft handle Types of outer bags: open pockets Bag shapes: square vertical section Carrying system: air cushion strap