Montane Slipstream Jacket - Men's - 2010 BCS

the blue one seems better！

First the fit:

Certainly no excess fabric is used on this jacket hence the low weight, body hugging fit and shorter than usual sleeves; which evidently end just above your wrists.

Fabric:

Although light and thin, it feels stronger than it appears. If you avoid abrasion, this jacket will last.

Overall:

Jacket is suitable for running but not cycling and hiking. On a cyclist, the sleeves would probably end at your forearms when hunched over.
For hiking the slim fit would most likely restrict movement and any possibility to layer.

If you're the type who only wears a t-shirts or base-layer, this could be a useful shell for light wind and rain as it weighs nest to nothing.

Its a first time buying the Montane product. And its great, I use it over two thin layers on my body for running. It breathes good and feels good.

Backcountry's description is right on the money. I wanted an extremely lightweight wind shell and that's what this is.
I ordered it in medium, which I wear in about everything. It is very close-fitting; I've only worn it over a thin wool top and can't imagine having much more than that under it.

The only thing I don't like is the elastic waist. All it does is ride up on me, so I took away a star.

Although this appears more durable on the website, it is VERY thin and seems too flimsy to actually be of any use.

I bought this as a backup for bike excursions and, of course, the low price. Pertex seems a great material that is showing up on the lighter gear, seems pretty strong to me. This is a very light jacket that packs really small so I always have it with me. Once I have tried it in more serious weather I may modify this review.
Addition: Works very well for biking in my view, cuts the wind down and breathes pretty well. Have not tried it in the rain.