Haven't had a chance to use it in the rain, so don't know how water resistent it is, but that fact the seams are taped, I'm pretty sure it would keep me quite dry. The jacket is very light and form fitting which is nice if you are trim. Comfortable collar and keeps the wind at bay nicely. Not very warm since it is mostly a windstopper, but it depends on how cold you get. Sunny day, mid 40's, little breezy, wore the venta and a long sleeve dryfit shirt and was fine. Very nice jacket overall and happy with purchase. If it had alittle more insulation, it would be perfect. I would wait for it to go on sale however (which I did), since I don't think any jacket of this type from any manufacturer is worth $300.