This bottle from Stanley combines the best of the best – the IceFlow Flip Straw Tumbler and the AeroLight Transit Bottle, now with a Fast Flow Lid wide mouth design for quick and easy hydration. Perfect for studio or gym workouts – everything from cardio to HIIT and more. Work up a thirst and find quick refreshment with Fast Flow. The leakproof, angled Fast Flow Lid is designed for quick and easy pouring, drinking and cleaning. Snap the cap into the handle’s integrated holder for storage while you drink. Featuring the easy-carry handle of the IceFlow, AeroLight featherweight technology for on-the-go transport, and double-wall vacuum insulation to keep your water refreshingly cold for hours. Crafted from recycled 18/8 stainless-steel, AeroLight™ featherweight technology uses spun steel that is 33% lighter than standard stainless-steel drinkware. Hand wash recommended.