If your love language is "cool outdoor gear", you need look no further for the next gift for your beloved outdoor guy The Antidote Hydration Reservoir by Camelbak is the toughest bladder out there and it has all kinds of features that outdoor experts get excited about The Antidote is built to military specifications: you can tell right away that it the materials are tough and durable. The reservoir is constructed from 016 in [0.41 mm] thermoplastic polyurethane film and this bladder is designed to offer fast and reliable hydration under extreme conditions such as heat or tough terrains. The Antidote offers a QL HydroLock bite valve adapter along with Quick Link Exit Port. The drink tube clicks off for faster refilling and the exit port is compatible with CPC accessory including the USMC standard filter. The drinking tube is encased in a sleeve which protects the tube from UV rays in hot climates. Several features combine to make an easy time of refilling the Antidote. A wide inlet area and a ¼ turn open/close for a fast and secure seal. The design of the Antidote has been carefully considered to offer maximum stability. This includes a lower/wider profile and a baffle down the centre of the reservoir to evenly distribute water and prevent it from sloshing around in a pack. So, speak to him in the love language of "cool gear" and order an Antidote Mil Spec Hydration Reservoir for his next birthday or Christmas gift Product Specifications: Material: .016 in [0.41 mm] thermoplastic polyurethane film > Engineering thermoplastic handle > 42 in (1067 mm) PureFlow Tube; 40 in (1016 mm) Tube Cover; Black Big Bite Valve; Black HydroLink HydroLock Capacity: 3L. 2L and 1.5L Weight: 3L long = 260 g, SL short = 198 g, 1.5L = 220 g BPA and BPS free