General: The Source WXP LP Hydration-Bladder has the patented Wideslide wide opening and adds a standard screw-cap opening. So, it is easy to refill the bladder without taking him outside the backpack. The low-profile-design gives him a stable shape no matter how full the reservoir is. Details: Low-Profile (LP): low profile keeps his shape empty/full evenly distribution of the water over a bigger area better weight distribution over the back Specification: all with the Witepac / Wideslide opening for easy filling, draining and cleaning leakproof Glass Like Technology prevents building a bio-film on the inside Taste Free System, PE-Layer prevents plastic-taste Grunge-Guard Technology inhibits bacteri growth in the reservoir and tube triple layer with taste and odor free PE film with anti-microbial agent Co-EX (Co-extruded) tube PP, PE & POM injected plastic parts Silicon Source Helix bite valve mouthpiece
