Jack Wolfskin Ultrasonic

This is the jacket for more leisurely walks as, unlike many of the others tested, it doesn’t require quite so much effort from the wearer to generate heat thanks to a thicker fleecy lining. This makes it a bit of a godsend on colder mornings, when you’re breathing steam. If you do manage to get up a head of steam, well-positioned chest pockets with mesh lining double up well as vents, although (from experience) be sure not to put anything of value in them, as they aren’t deep enough to function as vent and pocket at the same time. There are sleeve vents too. This is quite a bulky jacket, though, and minimalists are sure to begrudge the amount of dangling zip-pulls.

Fabric: Flex Shield Waffle
Weight (tested size): 365g
Women’s version: Yes
Contact: 020 7434 0994; www.jack-wolfskin.com