Nylon insulation sleeve for 2–2.50L hydration bladders—holds cold drinks, food, snacks, and water bottles while fitting most hydration packs. Key benefits Keeps contents cooler and secure: the insulated design helps maintain cold temperature for drinks and perishables during activities. Fast access and easy removal: wide open mouth plus a fastening strap allow quick insertion, removal, and cleaning of your hydration bladder. Reliable compatibility: designed specifically for 2–2.50L hydration bladders and compatible with most hydration packs and backpacks. Durable, lightweight construction: made from nylon for abrasion resistance, low weight, and easy care. Features Material: Nylon. Function: Insulating sleeve/bag for hydration bladders and small food or drink items. Size compatibility: Suitable for 2–2.50L hydration bladders; works with the majority of hydration pack models. Access: Open mouth with a fastening strap for secure closure and rapid removal. Practical use scenarios Hiking or day trips: Keep your 2L bladder chilled and quickly remove it to refill or clean at a water source. Cycling and running packs: Slide the bladder into your pack, secure it in place, and remove it in seconds during rest stops. Camping and travel: Store snacks or a water bottle alongside your bladder to keep items organized and at a stable temperature. Care and performance Easy to clean and maintain: wipe or hand wash as needed; quick to dry. Built to stay lightweight while offering protection and thermal buffering for liquids and food. Compatible, simple, and effective solution for protecting and moderating the temperature of 2–2.50L hydration bladders and small food or drink items in most hydration packs.