Outdoor Research - Men's Echo T-Shirt

Ultra Breathable and Lightweight 4-Season Customer Favorite

Built for high-output activity in warm conditions, the Outdoor Research Men’s Echo T-Shirt is an ultralight and highly breathable performance layer designed to keep you cool, dry, and comfortable during demanding activity.

Constructed from 100% recycled polyester, the Echo T-Shirt combines excellent moisture-wicking performance with extremely fast drying times. Outdoor Research’s AirVent™ technology promotes airflow through the fabric, helping regulate temperature and manage moisture during strenuous activity and hot-weather use.

Integrated ActiveFresh™ odor-control technology helps reduce odor buildup during extended wear, making the Echo an excellent option for multi-day trips, field exercises, training, and backcountry use.

Despite weighing only approximately 3.2 oz / 90 g, the Echo provides useful sun protection with UPF 15 in lighter colours and UPF 20 in darker colours.

Movement-mirroring stretch allows the shirt to move naturally with the body, while flat-seam construction helps reduce bulk and irritation when worn directly against the skin or beneath additional layers and equipment.

Whether used as a standalone hot-weather shirt or as an ultralight base layer in cooler conditions, the Echo T-Shirt delivers exceptional breathability and moisture management with minimal weight.