In February 2006 a few of the Glossop Mountain Rescue Team went for a long weekend to Glen Coe. We took the opportunity to test a variety of prototype jackets.
Other photographs from 2008, 2009 and 2012.
The incredible water repellency of a duck's feathers isn't just explained by the oils from the preen gland. Cassie's Law shows how the submicrometer surface texture increases the contact angle of the droplet with the macro surface to create a superhydrophobic effect.