The GoToob+ features a food-grade silicone body, the leakproof valve in the cap, & the new LoopLock, which adds further prevention from leaks & can be hung from a hook or clipped into a pack. Perfect for your stocking stuffers this holiday season OR your favorite outdoor fanatic friend! Great for carrying your DIY Hand Sanitizer! Our recipe is 2:1, alcohol: aloe vera. For a large (100ml) GoToob that would be 67ml (or grams, if weighing) of alcohol and 33ml of aloe Vera. FDA food-safe, BPA & PC-free. Dishwasher safe (top rack only). 3-packs for all sizes.