The Arcteryx Psiphon FL represents a synthesis of some of the top traits found in jackets featured in our review, and we have awarded it our Editors' Choice Award. It is incredibly lightweight, has excellent weather protection, breathes well, and is harness and helmet compatible for climbers and skiers. It provides a strong barrier to the elements and comes in a light packaged, giving it a versatile range of use. Summertime adventurers can throw it over a t-shirt as a capable windshell, while ice climbers can layer this jacket over a fleece mid layer and be comfortable.
It is not lined or in any way insulated, so if you're after a warmer option, we'd recommend something like the Outdoor Research Ascendant Hoody. The Psiphon is also not fully-featured, like the Mountain Hardwear Dragon. However, for overall usefulness, The Psiphon was the best jacket for a wide range of conditions.