Stainless steel flasks have been around forever, but they’re absolutely freezing in cold weather and sap your warmth if you have one in your pocket. Three things make this hip flask superior. First, the lid has a silicone grip and it’s on a hinge which means it’s easy to open and impossible to misplace. Second, the clear co-polyester construction is super lightweight, eco-friendly and you can see just how much spirits are left in the flask. Third, the Boulder Flask holds over a half-pint of your favorite beverage; 295ml or 10 fluid ounces to be exact. Available in two colors. MSRP: $14.95. //