The Sea to Summit Watercell X is a lightweight camping water storage bag and dispenser for backpacking, camping, bikepacking, paddle sports, expeditions, and adventure travel. Its 3D molded shape features an internal baffle for easier filling, packing, draining, and drying. Made from abrasion-resistant, semi-translucent, food-grade TPU, with RF welded seams. The screw-top wide-mouth opening is compatible with industry standard water filtration systems and replacement lids; multi-function dispenser cap features flow control and includes a shower fitting. An adjustable webbing strap and strong, streamlined grab-handles make it easy to hang, carry, or attach the bag anywhere, while a low-profile fill-handle provides one-handed manageability. The Sea to Summit Watercell X is available in four sizes: 4-liter water reservoir measures 11 x 8.5 x 4 inches and weighs 6 ounces; 6-liter water reservoir measures 13 x 9 x 4.2 inches and weighs 6.9 ounces; 10-liter water reservoir measures 16.5 x 11.2 x 5 inches and weighs 8.6 ounces; 20-liter water reservoice measures 20.2 x 14 x 6.2 inches and weighs 11.8 ounces. BPA, PVC and taste-free. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.