The YETI Yonder(TM) Tether Cap attaches to the existing chug spout and stays connected to your bottle. The ultra-durable screw cap and durable tether keep mean you have less to lose out in the wild, and more to drink. Whether you're backpacking, climbing, or just out in the sun, the Yonder(TM) Tether Cap will keep you hydrated and your bottle secure. The Yonder(TM) Tether Cap fits all Yonder(TM) Water Bottles. Do not use this Yonder(TM) Cap with hot, or carbonated beverages or use as storage for food or perishables. Features: Durable screw cap and tether attach to the existing chug spout and stay connected to your bottle 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