Instant hydration is yours. 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.
This one is for your cardio or weight workouts – or when you simply need plenty of water on-the-go. Work up a thirst and find quick refreshment with Fast Flow sports water bottle. 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 our IceFlow, AeroLight featherweight technology for on-the-go transport, and our double-wall vacuum insulation to keep your water refreshingly cold for hours.
This size is not car cup compatible - compatible sizes are 16oz&24oz
FEATURES:
Keeps drinks cold for 24 hours
Drinks stay iced for 4 days
Created with recycled 18/8 stainless-steel
Double-wall vacuum insulation
AeroLight™ featherweight technology uses spun steel that is 33% lighter than standard stainless-steel drinkware
Leakproof Fast Flow Lid is designed for easy pouring, drinking, and cleaning
Easy-carry handle with cap holder
BPA-free
Dishwasher safe
Built for Life™ lifetime warranty
Customer Reviews (4.7 / 5 · 16 reviews)
Benjamin R.★★★★★
The Fast Flow Lid really delivers — I can chug water without taking the straw out, and it’s perfect for my workouts. The 50 oz size lasts me through a full day of hiking without refilling. The wide mouth is a breeze to fill with ice cubes.
Mia T.★★★★★
I was skeptical about the 50 oz size, but the wide mouth really does make refilling and drinking fast. The lid has a tight seal so I can toss it in my bag without worrying about leaks.
John★★★★★
The wide mouth on the Fast Flow Lid really does make filling and drinking a breeze—I can chug water without the usual bottleneck. It keeps my ice intact for a full workday, even when I leave it in a hot car.
Hazel★★★★★
I was skeptical about the 50 oz size being too heavy, but the bottle is surprisingly well-balanced, even when full. The Fast Flow Lid really lives up to its name — I can chug water without ever slowing down.
Ava★★★★★
Finally, a 50 oz bottle that doesn't feel like I'm lugging a dumbbell—the lightweight build is perfect for all-day hikes. The flip straw lid seals tightly enough to toss in my bag without a single leak.
Robert P.★★★★★
The wide mouth on this lid makes refilling at the gym sink so much faster than my old bottle. I've been taking it on hikes and the 50 oz size lasts my whole afternoon without needing a top-off.
Christopher★★★★★
The Fast Flow Lid is a game changer—way easier to drink from than my old bottle without spilling everywhere. It keeps ice intact for well over a full workday, just like I hoped.
Claire Z.★★★★★
I was skeptical about the 50 oz size being too bulky, but it fits perfectly in my car cup holder and keeps water ice-cold during my entire shift. The flip straw is super convenient for one-handed drinking.
Joshua S.★★★★★
The wide mouth Fast Flow Lid makes refilling at the gym so much easier than my old bottle, and the 50 oz size keeps me hydrated all day without constant trips to the water fountain.
George P.★★★★★
Finally got the 50 oz size and it's honestly perfect for my long hikes—the wide mouth makes refilling from a stream so much easier than my old bottle.
