Bag size: Medium Pattern: Venom Lining texture: Polyester Model: YZXK-01 Accessory type: Buckle Material: Polyester Number of shoulder straps: Double joint Lifting parts: soft carry handle Function: breathable, wear-resistant, burden-reducing Hardness: medium Bag internal structure: computer pocket Capacity: 20-35L UNIQUE DESIGN: Featuring with colorful and rich patterns, unique patterns will cultivate your child's curiosity and capture the spirit of imagination. This kids backpack would add vitality and energy to children's daily life, guiding your child to explore more interesting dreams. IDEAL GIFT: lightweight design Lightweight cute preschool backpack will not add extra burden to your child. Perfect for your child to go to kindergarten, preschool, daycare, nursery, elementary school, travel, hiking, camping, etc. This will be the ideal gift for your lovely kids,nephew, younger brother and sister on Christmas,Birthday and some memorable days.