Expandable Waterproof Travel Backpack Umbrella Colorful Design: Vibrant and attractive

Colorful Design: Vibrant and attractive colors to engage children's interest

Function: Thermal insulation

Warmth: Thickened faux fur material provides excellent insulation for cold weather

gradient gray

Green Film

Expandable Waterproof Travel Backpack Umbrella Colorful Design: Vibrant and attractiveOverview Vacuum Compression: Innovative compression technology maximizes space efficiency for travel essentials Expandable Design: Flexible capacity adjustment from 56L to 75L for versatile packing needs Waterproof Protection: Oxford cloth material with sealed seams ensures durability and weather resistance Multi Function Organization: Dedicated compartments for laptops (up to 16 inches), documents, and accessories Ergonomic Comfort: Curved shoulder