Review on 🏃 Stay Hydrated on the Go: Azarxis TPU Soft Flask Running Collapsible Water Bottles - BPA-Free and Perfect for Running, Hiking, Cycling, and Climbing by Will Schimmel

Overall a good product. I skied this product a total of 15 days this season. Some notes: 1. It took me a while to figure out how to make sure there wasn't a leak - turns out the instructions were wrong. Instead of twisting, pull the black end up to open. Make sure it is closed as it will leak when opened.2. The plastic end comes off when you pull it.3. The lid is excellent freeze protection, but not complete protection.