The following size charts have been thoroughly assessed to ensure that taking accurate measurements will assure the correct size being ordered. When a gymnast's measurement contains a partial cm/inch always round up to the next full cm or half inch. Where to measure? Grab a measuring tape and get ready to keep a gymnast still for 2 minutes! Torso - Please note* The most important measurement is the torso! Place the tape on the shoulder, measure from the shoulder, through the legs around the back to meet the shoulder where you started. Chest - Place tape close to the armpits, measure around the chest at the fullest part. Waist - Place the tape at the narrowest part of the body (near the belly button) and measure all the way around. Inside leg - Place tape measure at the top of the groin and down to the floor.