Everfun Hydration Backpack 18L With Water Bladder 2L/3L Hiking Water, Festival Product Details UTMOST STORAGE CAPACITY: 10.5-inch large opening 18-Liter main compartment to fit clothes/notebook/first-aid kit/kids' stuff. Built-in mesh pocket for personal valuables. Exterior upper velvet pocket perfect for protecting cameras, mobile phones. Trekking poles, extra water bottle in the side mesh pockets for easy access. Helmet carry between the outer pocket and middle pocket. Don't worry, the EVERFUN Hydration backpack has the utmost storage capacity for you and your kids' stuff. HIKING/CYCLING/SKIING WITH EASE -- With Ultra-Elastic 3D breathable padded back adjustable chest, waist straps , this 1.7pounds lightweight hydration backpack is comfortable and stable, perfect fits all sizes. HANDS FREE DRINKING -- This Hydration Backpack comes with 2-Liter water bladder bilateral hose outlets designed to free your hands. A separate inuslated bladder compartment for 6 Hours' Cooling(with ice packs) . The 2-Liter bladder is replaceable and supports up to 3-Liter. DETAILS FOR YOUR SAFE -- This 2-Liter Hydration Bladder is 100% BPA free. High-Density Nylon fabric and Built-in Rain Cover, ideal for any rainy activities. Reflective strips keep you visible in low-light conditions. 100% SATISFACTION GUARANTEED: EVERFUN guarantee that the high quality hydration backpack will surely please you! If, for any reason, you are not 100% satisfied with our camping backpack, we will issue you a full refund or an exchange! Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.