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Men’s & Unisex Shirt Size Chart

Choose your size from your body measurement first. The finished-shirt measurements farther down are for comparing the shirt itself—not your body.

How to measure

  1. Wear a light shirt and stand naturally.
  2. Wrap a soft measuring tape around the fullest part of your chest or stomach, whichever is larger.
  3. Keep the tape level and comfortably snug, without pulling it tight.
  4. Use that number in the body-size chart below.

Body-size chart

Recommended body measurement ranges for men's and unisex WindRider sun shirts
Size S M L XL 2X / XXL 3X / 3XL 4X / 4XL 5X / 5XL
Chest or stomach (in) 36–38 38–40 41–43 44–47 47–49 50–54 55–58 59–62
Between sizes? Choose the smaller size for a closer performance fit or the larger size for a more relaxed fit and airflow. These shirts have a slightly relaxed fit and an essentially straight body, so use your chest or stomach measurement—whichever is larger.

Finished-shirt measurements

These measurements are taken from the actual garment. “Flat chest” is measured straight across the shirt from armpit to armpit. Double it for the approximate shirt circumference.

Finished-garment measurements for men's and unisex WindRider sun shirts
Size Flat chest Approx. shirt circumference Body length Shoulder Sleeve from center back
S 20.5" 41" 26" 17.25" 33.5"
M 21" 42" 27.5" 17.625" 34.5"
L 23" 46" 27.5" 19" 35.5"
XL 25" 50" 28" 20.5" 36.5"
2X / XXL 26" 52" 30" 21.25" 37.5"
3X / 3XL 29" 58" 31.5" 23.5" 38.5"
4X / 4XL 31" 62" 32.25" 25" 39.25"
5X / 5XL 33" 66" 33" 26.25" 40"

Example: A Large shirt measuring 23 inches across the chest is about 46 inches around. It is intended to fit a 41–43-inch body, leaving room for comfort and movement.

Measurement tolerance: Finished-garment measurements are actual production measurements and may vary by ±0.5 inch.