The Arc'teryx Women's Trino Jacket is a highly packable shell that helps block wind and light rain during trail runs and high-output mountain training. Constructed from Lumin fabric, the jacket is incredibly light, tear resistant, and balances wind resistance with breathable comfort. A DWR (durable water repellant) treatment helps shed light rain, and mesh panels under the arms help prevent overheating. Features are built in, seamlessly functioning with the jacket to maximise performance, reduce weight and bulk, and enhance comfort.Because mountain training is dynamic, freedom of movement is a necessity. The women-specific design, motion-friendly trim fit, and articulated elbows and gusseted underarms work in concert for maximum freedom on the move. The drop back hem provides increased coverage, and the low profile collar seals out the weather without chafing or restricting movement. A zipped pocket at the hip includes a secure internal pocket and cord port for a smartphone or media device. Reflective blades improve visibility in low light. Weighing only 105 grams, the Trino Jacket stuffs into its own compact pocket, so it's easy to pack and carry.