SmartWool Lightweight Zip-T - Women's - 05 These odor-free garments are as natural a fit for warm-weather use as our sheep are for New Zealand hillsides. With moisture-moving fibers creating a layer that breathes more easily than you do, these tops and bottoms will get you to the top and bottom of your local mountain as efficiently as possible. Suitable for a variety of temperatures and activities, they’re like the SUV of the garment world – sporty and versatile – even if you’re trail running in the tropics. Features: 100% SmartWool jersey knit.