In reply to peebles boy:
It's a super minimalist hard shell with no frills to keep weight as light as possible. Designed ideally for light and fast alpine ascents. Not as hard wearing as other hard shells which is a trade off to keep weight down.
Suitability depends what you intend to use if for:
- If you want a jacket for light and fast alpine ascents it's probably great.
- If you want a jacket which is super durable and more "bomb proof" weather wise (e.g. for scottish winter) then it's not the best choice.
It's not insulated, so I wouldn't consider it all for use as a belay jacket.