Review on 🏞️ Sports Squeeze Water Bottle: 2-Pack, Leak-Proof Squirt Bottles - 28oz - Made in USA (Blue) by Daniel Pierce

My bike has special water bottle holders and those bottles were too narrow at the base for these gauge style holders. I used a heat gun and heated the bottoms of the water bottles to almost melting point and squeezed them into a slightly conical cup that changes the shape of the bottom to match the sensors. Worked very well. Instead of bottles with a slight widening at the bottom, they are now mostly straight cylindrical. I can understand why 50 Strong tapered them to fit typical wire bottle cages that widen a bit at the bottom but are not needed at all for a water bottle. Also, I pulled the stingy water valve off the back of the lid with needle nose pliers to give the water more generously. I don't mind if they flow from above. I only use them in a bottle cage for long trips. Now they work perfectly. Very happy after renovation. Good price.