We know that great bidons are hard to find, but after years of searching we have finally found you the perfect squeeze. A 500ml bottle with an innovative membrane and lockable twist cap, preventing leaks whether you are on the bike, trail or train. Shown here with a transparent black body and oversized gloss black logo - a stealthy design that is ready to match with any bike, and every outfit. This is the same #1 Tacx bottle as used by the Pro Teams around the world, but with an upgraded Premium cap. So the best really did just get better, and we believe this is the best quality, most durable, and best designed bidon on the market. Features: A lockable valve that can be twisted with one quick and easy movement. When locked it is impossible to spill, which means no more fumbling with pull spouts. Constructed from a soft, BPA-free recyclable plastic while remaining environmentally friendly Large opening, the bidon is both easy to squeeze and easy to clean after use, We worry about the small things, so you don't have to.