The most intuitive leakproof valve to hydrate easily. Soft mouth contact.
Easy to disconnect the tube from the bladder, even when full.
FDA approved polyurethane.
Easiest to clean, turn it inside out.
Choose the orientation of the bladder exit, through the top or through the side, to fit your backpack.
Used for specific properties like -elasticity, creating comfort close to the back -transparency, to clearly see the water level inside -resistance to any liquid, for a taste free vessel -PVC free, and no toxic substances reject when recycled Thermoplastic polyurethanes are optimal for bladders and tubes.