Sella is a lightweight, two-layer bonded windproof, using Gore-Tex’s Windstopper Active Shell. That also makes it water resistant and moderately breathable. This works well for activities like cycling, or hiking in breezy conditions. For backpacking or ski touring, it’s less versatile. That’s partly due to the cut: it has a feminine shape with flared hips, but the collar is sized to fi t over a lightweight base layer only. With no stretch, that definitely reduces its versatility. Unfortunately the collar, which is quite high, isn’t soft-lined; instead, the outer face doubles over to become the lining. As a result it gets sweaty quickly, and since there is minimal room underneath for a high-neck garment to shield against this clammy feeling, it can be quite unpleasant. That’s a shame, as this small addition would make a big difference. On every other level, it’s a lovely gilet and I’ve used it often for cycling (with a base layer collar underneath). The flared hem has a shockcord adjuster, zipped side pockets are roomy and armholes are stretch-bound.