This is the new version of the previous Gamma LT Jacket and is the most all around softshell jacket from Arc'teryx. The double weave fabric uses nylon on the outside for extra abrasion resistance with polyester woven into the inside for a little extra comfort, warmth, and moisture wicking. A very versatile piece that is an excellent weight layer to put on when you need a little more warmth, and a standalone baselayer isn't warm enough and a waterproof hardshell is too much. Wear this as a wind jacket, mid-layer, or outer layer for extra abrasion protection while alpine rock climbing. Put this over a puffy jacket for extra snag and abrasion resistance during cold weather activities when extra protection is needed but wearing a bulky or boardy full-on waterproof hardshell would be undesirable. This jacket could go with you on virtually any mountain outing, anywhere, and any time of the year.