The YETI Yonder(TM) Straw Cap provides controlled sipping and quick access to hit your hydration goals. Flip up the straw, take a swig, and push it down for a leak resistant seal every time, so you can get back to your next set. The wide straw also quenches maximum thirst so even the shortest sips get the job done. Do not use this YETI Yonder(TM) Straw Cap with hot, or carbonated beverages or use as storage for food or perishables. Features: Flip-straw cap allows controlled sipping and quick access 100% leakproof design helps prevent unwanted spills Clip-on carrying lets you slip it through a backpack strap or clip it onto a carabiner Dishwasher safe Fits all Yonder water bottles