Sleeves Size chart (inches)

Unisex sizes for Sun sleeves, arm warmers, sun sleeve plus	XXS/Jr	XS	S	M	L	XL	XXL	3XL
Length	17½	17¾	18	18 ½	19	19 ½	20	21
Upper arm circumference	8½ – 9¼	9¼ – 10	10 – 10¾	11 – 11¾	11¾ – 12¾	12¾ – 13¾	13¾ – 14¾	15 – 16

Typically people wear the same size sleeve as their shirt size (plus or minus one size.) The upper arm circumference is the key measure– too loose and the sleeves fall down; too tight and the sleeves are uncomfortable. Scale up a size if you lift weights or have heavier upper arms; go down a size if you have proportionately slim upper arms or lack muscle definition.

To use the size chart, you’ll need a tape measure. If you don’t have one, try a piece of string, ribbon or strip of paper then measure that against a ruler. Measure your upper arm circumference around your upper arm *above* the bicep (and below the deltoid muscle). Measure both arms, as some people have a significantly larger dominant side (right or left handed-ness) measurement.

We suggest that the top of the sleeve be worn at your upper arm above the bicep and below the deltoid muscles where your arm narrows a bit. The sleeve should fit snugly but not bind at the upper arm. If it feels too tight, or you are getting a ‘muffin-top’ at the upper arm, go up to the next larger size. With the sleeves on, try swinging your arms in a practice swing. If the sleeve feels loose at the upper arm while swinging, go to the next smaller size. Note that most people’s dominant arm (right for right-handers) is slightly (but can be significantly) larger then the non-dominant arm, so you’ll want to take that into consideration, especially if you are between sizes.

If you have short arms or for some women the unisex sizes may be a bit long– we suggest that any extra length be gathered at the wrist to avoid bunching at the elbow or upper arm. Call if you have questions on sizing and we can talk you through. If when you try it on it turns out you have the wrong size, just send back your unworn sunsleeves and we’ll swap.