The new Beta Lightweight from Arc'teryx (€ 500) weighs 345 grams - not much for a functional rain jacket made from robust, extremely vapour-permeable three-layer Gore-Tex (70/40D recycled outer fabric). Long underarm zips allow cooling air to flow inside if required. In addition, the Beta Lightweight remains waterproof even in heavy rain and has a well-protected, fully adjustable storm hood...

The Arc'teryx Beta Lightweight is the first three-layer jacket made from the new PFC-free ePE Gore-Tex membrane that we tested. It makes a brilliant impression, combining low weight and durability with superb wear and climate comfort better than any other jacket in the field. The Beta Lightweight also keeps wind and weather at bay and water beads up longer than with other PFC-free waterproofing...