A must-have for camping, hiking and other outdoor activities, the Nalgene Flask ($8-$11) holds 12 ounces of liquid without spilling a drop. Its convenient size and slender profile easily tucks into bags and packs for long-term liquor liquid storage without the plastic taste and odor. The Nalgene Flask includes a leak-proof lid with a one-ounce measuring cap and a removable insulation sleeve.