The YETI Rambler 26 oz Insulated Water Bottle with Flip Chug Cap is designed for quick access to hydration during nonstop days. The Flip Chug Cap uses a magnetic C-Lock: slide it right to unlock, flip the cap open for a wide, fast-flowing sip, then press it back down and slide the C-Lock left to seal it against spills. The lockable, covered spout shields the drinking surface from dust, grime, and germs when it is not in use. Underneath the cap is YETI's proven 18/8 stainless steel bottle construction with double-wall vacuum insulation that keeps cold beverages cold for hours, plus rust- and puncture-resistant DuraCoat color coatings. It is fully dishwasher safe for easy cleaning. YETI notes this cap is intended for cold beverages only and should not be used with hot or carbonated drinks.