Icebreaker Siren Tank Top - Women's - $54.95

With the Icebreaker Siren Tank Top's uber-soft, lightweight merino wool, you can stay cool on hot summer hikes, relax in the backyard hammock, or work on your slackline skills. Merino naturally inhibits the growth of bacteria, which means this top won't get stinky during week-long backpacking treks or hot out-all-night escapades. - $54.95