From left: Aether Empire jacket, Odin Moon Light jacket.
Summer can't come soon enough, but until it arrives, exercising outdoors will continue to require an extra layer. These lightweight, breathable jackets strike the perfect balance between protecting you from brisk winds and keeping you cool as your body heat rises.
Known for its impeccable snow-sport gear, Helly Hansen brings thet same level of technicality to any mountain-bound activity with the Odin Moon Light jacket ($200; hellyhansen.com). The water- and windproof piece is slim-cut, but two-way stretch and underarm flaps—rather than bulky zippers—make it easier to move around.