Review on 🍾 BellFlask 15 oz Non-Metal Plastic Reusable Flask - Concealable Liquor Hydration for Travel, Vacation, Sports, Concerts, Events - Pack of 3 Flasks (Black) + Free Filling Funnel - Patented Design by Sean Zamora

I really like these bottles and may get a few more. I don't use them to smuggle booze into gigs, although I think they'll work if that's your purpose. I actually use them for hiking. The problem with drink chambers is that it's hard to tell how much you've used/left over. On hot days I sometimes blow through what I have brought with me and nothing is left for the "last mile”. With these bottles I can control myself. I can keep them in my side pocket (they're a great size for that) and just sip 2 ounces at a time knowing I'm getting 6 servings in one bottle. Then I just bring as many bottles as I need and voila.