• True to size - pick the size you wear in T-shirts

• If you're between sizes, size up

• Chest: Measure FULL circumference of the chest (around chest + back) 2.5cm underarm

• Waist: Measure FULL circumference at the smallest / narrowest part of the waist

If you need help picking a size, you can email us at info@fighthausmma.com and we'll be happy to help out.