I have two of these
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www.raymears.com
One is Khaki that I use For stalking. The other is Red that I use for ski touring, hill walking etc
They work like Ventile as in very tight weave that swells and keeps the water out. They let you work hard and sweat works its way out. They break the wind and with a fluffy fleece or jumper you ate very warm.
only change I would make would be to put in a side zip so easier to get on and off and also for ventelation. Keep meaning to but never get around to iT.