It is a very basic but extremely effective waterproof
trouser in colder conditions when sweat is not such an issue. These trousers
are a pull on style with a simple velcro fastening at the waist and pullcords to adjust for waist size and ankle ties as well. They also have a fly opening and flap covered side opening for access to trousers
worn underneath. here. The internal seams are sealed to prevent water ingress.
The waist sizing on these trousers
is larger than normal and we estimate a Small will fit a 32-35 ins waist, a Medium 36-39ins waist and a Large 40-43ins waist. So this a size up from normal unless lots of layers are worn underneath.