Sometimes the classics just work, and a well-made stainless steel hip flask is hard to improve on.

The GSI Hip Flask is built from 18/8 stainless steel, the same food-grade alloy used in quality kitchen and brewing equipment, which means no metallic taste and no corrosion over years of use. The curved profile is designed to sit comfortably in a back pocket or tuck neatly into a jacket, and the wide mouth makes filling from a bottle straightforward without a funnel.

A polyethylene leash keeps the cap attached to the flask so it stays with you in the field, and the included microfibre storage bag pulls double duty as a cleaning cloth when you're back home. Available in two sizes to suit how you pack and how long you're out.

• Available in 6 fl. oz. and 8 fl. oz. sizes
• Material: 18/8 stainless steel
• 6 fl. oz. dimensions: 4 x 1.2 x 5 in., weight: 7.7 oz.
• 8 fl. oz. dimensions: 4 x 1.2 x 6 in., weight: 9 oz.
• Wide mouth opening for easy filling and pouring
• Polyethylene leash keeps cap attached
• Includes microfibre storage bag and cleaning cloth