Hi. I was looking at the Rab Boreas as a lightweight outer layer and I was wondering how windproof it is. Obviously it won't be completely windproof (not always a bad thing) but I just wanted to know how much protection it offers. Thanks.
I would say it was more wind resist than windproof. It cuts out the worst of a strong wind so that it means say if you are wearing a baselayer/midlayer you will fell the effects of the wind a lot less. Giving other fabrics as examples Pertex Equilibrium is more wind resist compared to the fabric used in the Boreas whereas Pertex Microlight and the like is windproof. I would best describe it as a summer garment where you may want some protection from the climate wind and sun rather than a proper wind garment. It is very breathable and the stretch properties make it comfortable to wear.
It's wind resistant enough to take the chill off on days when a base layer alone isn't quite enough, but by no means wind proof, if that makes sense. On a scale of one to five for wind resistance I'd put it around 1.5 where 0 is an open weave fleece and 5 is fully windproof, if that makes any sense. It also has a little water resistance if DWR treated, but not a lot once its worn off.
I tend not to wear mine as a baselayer, fwiw. I think the elastane content - the reason it's so stretchy - means it's not so good next to skin, but I tend to run quite warm.
If you can afford it, the new version of Rab's VR Lite is spot on ime. Very light and significantly more weather resistant, but then again a different sort of beastie and a lot more expensive.
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can highly recomend it, soft stetchy and nice and light great for lightweight adventures and mtn biking
theoutdoorshop.com doinh them for £30 bangers in apple green & breaker blue
A bit late to chime in but several of my mates swear by them. You can wear next to skin in summer, as a mid layer in winter or a top layer over a baselayer on warmer spring/ autumn days. I got one and like it but don't wear in summer as one of the ways to control temperature is to pull the sleeves up however on me they are a bit tight and only pull up a couple of inches. I would only say my forearms are slightly larger than average. I was also interested in a Sawtooth recently but again the sleeves were too tight. I got a Montane Sabretooth instead and now steer away from Rab only because of the weird arm fit.
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