Material: Polyester Size: Folding size: 11.4*11.4cm/4.5*4.5in Storage size: 21*17*8cm/8.27*6.7*3.15in Colors: Five colors 1. Lightweight and portable: Designed to be light and easy to carry, making your outdoor hiking more relaxing. 2. Load-reducing design: Ergonomic design to reduce shoulder burden, allowing you to wear it for long periods without feeling tired. 3. Expandable: Can be expandable according to needs, meeting your different usage requirements for various occasions. 4. Multi-functional storage: Reasonably designed storage space to effectively store and classify various items, making your travel more convenient. 5. Various colors: Multiple colors to choose from, satisfying different consumers' preferences, making your outdoor hiking more personalized. Package includes: 1pcs Outdoor mountaineering bag. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.