evo.com | Outdoor Research Activewear Tees > Need a tee that can handle a full day of sweat and still smell decent at camp? The Outdoor Research Echo T-Shirt pairs ultralight, bluesign(R) approved recycled polyester with AirVent(TM) airflow, ActiveFresh(TM) odor control and UPF 15 to 20 sun protection, ready for trail runs, summer hikes and long backcountry trips. Reflective Logo 100% Recycled Polyester Flat-Seam Construction Set-In Sleeves bluesign(R) Approved | Women's Outdoor Research Echo T-Shirt 2027 - Small Blue | Polyester