SmartWool

How to Measure:

For best results, take measurements over your underwear.

Chest:

Measure under your arms, around the fullest part of your chest.

Arm Length:

Have a friend measure from your center back to your wrist.

Waist:

Measure around your natural waistline, keeping the tape a bit loose.

Hip:

Measure around the fullest part of your body at the top of your legs.

Inseam:

Using pants that fit well, measure the crotch seam to the bottom of the leg.