Recommended Price: £349.99Weight: 720g (women’s size 10) Originally developed in the late 1930s, clothing made of Ventile is said to have saved the lives of countless RAF pilots who ditched into the sea. A very tightly woven cotton, it was created to be cool and practical when worn in the cockpit but warm and impenetrable when it came into contact with water. Later used both during the first ascent of Everest in 1953 and by Sir Ranulph Fiennes to cross the Arctic, it has continued to be championed especially by polar travellers, but largely fell out of favour as other…