I have 3 experiences, Berghaus coat, normal weight for winter walking here, stayed in bag all time, heat wave. Same coat 2nd Camino didn't keepout the persistent rain, all day for 10 days (BUT it wasn't cold) 3rd time got a light weight 500 isotex?, a packable item 400g, was great, extra layer for coldish mornings and evenings and did keep out showers/was no persistent rain. THIS time "new coat" arrived this am in post. It is a Goretex paclite, 200g!! weight, lovely blue colour, only 1 small chest pocket, (expensive/ a treat). Weigh all your gear, layer up, bring as light a coat as you can.