man in running tights

Hugs your body and stretches to move with you. Examples include tights and base layers.

man in running shorts

Follows the shape of your body with some breathing room for unrestricted movement. Most of our apparel is semi-fitted.

photo of two men with numbers identifying the parts of the body needing to be measured to ensure a good fit
  1. Measure your waist
    Your waistline is sometimes tricky to find and measure! The natural waistline is halfway between the lowest rib you can feel and the top, outside edge of the hip bone. One trick might help you find this spot are to stand up straight and tilt over like a teapot. Where your torso creases is often where your waistline is. Another trick is just to measure 1” above your belly button.
  2. Measure your hips
    Standing with your heels together, use your measuring tape and wrap it around the fullest part of your hips, including your butt. Make sure the measuring tape is parallel to the floor.
  3. Measure your inseam
    Measure from your crotch down your leg to the bottom of your ankle bone. Inseam lengths in Brooks bottoms do not change from size to size for the same style.

Want help from an expert? Ask a guru.

Waist Hip measurement
XS 28-30 33-35
S 30-32 35-37
M 31.5-33.5 37-39
L 34.5-36.5 40-42
XL 37.5-40 43-45
XXL 41-44 46-49
Waist Hip measurement
XS 71-76 84-89
S 76-81 89-94
M 80-85 94-100
L 87.5-92.5 101-108
XL 95-101.6 109-114
XXL 104-112 115-124