Stay comfortable and eco-conscious in the tentree Piper T-Shirt. Made from soft, breathable TechRib fabric, this tee keeps you cool and comfortable throughout the day. Its anti-odor and moisture-wicking properties make it perfect for layering during the Pacific Northwest's unpredictable weather, whether you're heading out for a hike or meeting friends in the city. And with each purchase, you're supporting tentree's mission to plant trees and restore ecosystems worldwide.