Smartwool

How to Measure:

For best results, take measurements over your underwear.

Chest:

Measure under your arms, around fullest part of chest and back circumference.

Waist:

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

Hip:

Stand with feet together and measure around the fullest part of the hip.

Arm Length:

With elbow bent slightly, measure from center back of neck, across top of shoulder, to elbow and down to wrist bone.

Inseam:

Measure along inside leg from crotch to ankle bone. Or using pants that fit well, measure the crotch seam to the bottom of the leg.