Definitely tick the boxes for warm and windproof, but I just wore them for the first time today to walk the dog in moderate (not heavy/torrential) rain for about 45 minutes and they're definitely not waterproof. Within 5 minutes my knees were feeling wet. Thought it was because of contact points (but I'm guessing most customers come equipped with knees). Within 15 minutes I had trickles of water down my legs, inside the trousers. So I'd say excellent for cold, dry weather, or in an unheated building/barn, but don't expect them to keep your legs fully dry.
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