【Product Overview】 • This is a 1-liter hydration pack from AONIJIE. It's a water supply bag perfect for hydration during outdoor activities such as mountain climbing, trail running, and cycling. 【Features】 • Compact and lightweight design with a 1L capacity • Easy to open and close with a slide-lock mechanism, leak-proof structure • Includes a tube with adjustable length • BPA-free material for safety and peace of mind • Temperature resistant from -20°C to +50°C, usable in any season 【Specifications】 • Brand: AONIJIE • Capacity: 1 liter • Temperature range: -20°C to +50°C • Material: High-quality TPU (BPA-free) • Color: Blue • Size: Approximately 32cm x 16cm (when unused) 【Accessories】 • Main body (1L hydration pack) • Water intake tube (with mouthpiece) • Slide-lock clip 【Uses】 • Mountain climbing, hiking, camping • Trail running, marathons • Cycling, motorcycle touring • Also useful for festivals and disaster preparedness 【Benefits for Buyers】 • ✅ This product is especially recommended for "those who want to easily hydrate during long outdoor activities!" • ✅ Lightweight and leak-resistant design, easy to fit in a hiking backpack. • ✅ Easy to clean and hygienic, economical for repeated use. 【Notes】 • It is recommended to rinse with water once before use. • After washing with a mild detergent, dry thoroughly and store. • Immediate purchase OK! Feel free to ask questions. ※ Taken out of the bag during photography