The Alpine Star is robust and extremely lightweight for an insulated product, and promises to keep liquids hot or cold for many hours, making it ideal for all seasons.

The SIGG Alpine Star is available in three sizes - 0.5L, 0.75L and 1L. It features copper-coated double-wall insulation and an insulated cap - the 1L flask retains heat for up to 25 hours and cold for up to 105 hours. The silicone base ensures a firm hold on different surfaces and thanks to its non-slip surfaces and distinctive grooves, it’s easy to grip and use while wearing gloves. A simple turn of the SIGG Twist&Pour cap is all that is needed to get a drink flowing, into the integrated cup.

Made using innovative spinning technology, the Alpine Star products are 30% lighter in weight than comparable insulated flasks. Add in the leak-proof construction and each flask is safe and easy to transport in a pack. The Alpine Star bottle body is made out of 90% post-consumer recycled stainless steel, and is recyclable at end of life. All of the flasks in the range are BPA-free and taste-neutral.

Available in a range of colours, the SIGG Alpine Star flasks retail at £31 (0.5L), £36 (0.75L) and £40 (1L), available from elected specialist retailers and at www.sigg.com.