Light as a feather and cool as a cucumber - this Columbia Sportswear Men's Altimeter Performance Shirt is your go-to activewear option when the warm weather sets in. Perfect for trail hiking and running, it features our Omni-Freeze® technology which actively works to pull heat away from your skin so when your workout heats up, you don’t have to. Built-in sun protection blocks harsh UV rays and side gusset detail cranks up the comfort factor.
