Patagonia M's Capilene® Cool Ultra Shirt

Featherweight Performance for Maximum Output

The Patagonia M's Capilene® Cool Ultra Shirt is built for those who move fast and push hard in the heat. Designed as Patagonia’s lightest and fastest-drying technical tee, it delivers unmatched breathability and moisture control for trail runs, high-mileage hikes, and long, hot days on the water where staying cool is critical.

Ultra-Breathable Fabric That Dries in a Flash

Constructed from 100% recycled polyester, the Capilene® Cool Ultra Shirt features a featherweight honeycomb knit that promotes constant airflow, rapidly dispersing heat and moisture. This open structure helps regulate your body’s microclimate during high-exertion activity. HeiQ® Mint odor control keeps the shirt fresh over extended use, while flat seams, set-in sleeves, and armhole gussets provide a chafe-free fit that moves naturally with your body.

Key Features:

• Ultralight 100% recycled polyester textured-knit fabric

• Honeycomb construction maximizes airflow and cooling performance

• Fast-drying material designed for high-output activity

• HeiQ® Mint odor control provides long-lasting freshness

• Set-in sleeve construction enhances fit and range of motion

• Armhole gussets allow unrestricted mobility during movement

• Low-profile flat seams reduce chafing during extended wear

• Locker loop for convenient hang drying

• Tag-free neck construction for itch-free comfort

• Small woven Patagonia® logo at left-front hem

• Produced in a Fair Trade Certified™ factory

• Made in Sri Lanka

• Weight: 74 g (2.6 oz)

• Style No. 44710

The Patagonia M's Capilene® Cool Ultra Shirt is an ultralight performance tee engineered for high-output activity in hot conditions. With fast-drying recycled fabric, airflow-driven construction, and odor control, it’s ideal for running, hiking, fishing, and active summer pursuits.