Review on Anti-Slip Silicone Sleeve for Summit and Ascent Bottles - Fits 10oz, 14oz, 17oz, 18oz, 20oz, 22oz & 24oz Water Bottles - Simple Modern Boot - Midnight Black (Small) by William Mahajan

I like this much more than the branded hydroflask boot. It's thicker, absorbs shock better, and doesn't have a hole in the bottom. Pros of not having a hole: Now I always have the option to share water with my service dog no matter where we are or what we're doing. Cons: The lack of a hole means it's a bit more of a hassle to get on and off than loading a Gyroflask - not enough to be a hindrance for me. Because the silicone is thicker, it's actually easier to remove than a water bottle protector as you don't feel like falling out and ripping it!