Soloom 15L Cycling Camping Backpack Hydration Pack with 2L Bladder Nylon Hiking Daypack for Women Men,Army Green nylon Imported HYDRATION PACK SIZE:15.7"x9.8"x5.9",Includes a 2L Bladder HEAT INSULATION LAYER:Protect water in bladder from the temperature of your back. REMOVABLE 2L(70 oz)BLADDER:Environmentally friendly TPU materialStores water from -4F to 122F (-20C-50C) DURABLE:High-quality nylon tear resistant fabric,attractive and persistent. MORE STORAGES:Storage compartments are designed to carry your clothes, iPad, phones and even 11" -12" laptops.