Aerodynamic replacement water bottle for use with XLAB Versa 200, Versa 500, Versa Slim and 50+ front hydration systems. 26oz capacity. Dishwasher safe Contoured bottle design. fits snugly between your arms and allows you to rest your hands comfortably in front or to the side. Kamm Tail . The angled rear of the bottle, is not just for looks. It helps reduce the drag by 50%. Airflow Straighteners. Carefully molded into the top of the bottle, these grooves re-direct airflow for a clean, straight exit, reducing drag. Two straw positions for a customized fit. Squishy, but durable bite valve gives you a fast refreshment while helping to decrease bloating which is caused by taking in extra air. STRAW NOT INCLUDED. Small rounded Nose. With a small frontal area and smooth edges, air can wrap cleanly around the bottle essentially eliminating harsh surface impact which can cost you time in a race. One-Piece Bottle System Unlike others, the TORPEDO BOTTLE carries 769 mL (26 oz) of fluid – enough capacity to take on a full aid-station bottle in its entirety keep you fully hydrated. The unique one-piece bottle design helps eliminate bottle leaking common in other systems.