About this product: 1.YKK Waterproof Zipper: Waterproof and splash-proof, effectively protecting cards, cash, and other small items, ensuring peace of mind even in rainy weather. 2. UHMWPE High-Strength Fabric: Ultra-lightweight, wear-resistant, tear-resistant, sturdy, and durable, unlikely to be damaged even after prolonged use. 3. Ultra-Lightweight: The small size with hook weighs only 14g, and the large size weighs 18g, making it lightweight and portable. 4. Built-in Carabiner: Can be directly hung on backpacks, belts, or belt loops for easy access without taking up much space. 5. Two Sizes Available: Meets different storage needs, suitable for storing bank cards, ID cards, keys, loose change, and other small items. Specifications - Material: UHMWPE (Ultra-High Molecular Weight Polyethylene) - Zipper: YKK waterproof zipper - Dimensions: Small 14×9cm / Large 18×12cm - Weight: Small approx. 14g / Large approx. 18g - Uses: Outdoor hiking, travel, daily carry-on storage Suitable Scenarios Outdoor hiking, camping, travel, business trips, daily commutes, EDC (Everyday Carry) storage; suitable for those who prioritize lightweight and practicality.