The jacket is made of 425 gsm (gram per square meter) pearl weave with reinforcement at stress point. Rubberized collar to prevent sweat and bacteria absorbing into the fabric. Rebelz Kids Jiu Jitsu Club woven patch at the back. The pants are made of 280 gsm twill cotton with double reinforced knee areas. Elastic waist and drawstring. The cuffs on both sleeves and pant legs have four rows of stitching. Belt is sold separately. – Jacket: 425 gsm pearl weave. – Pants: 280 gsm twill cotton. – Gi bag included. This gi will shrink approximately 1-5 % after 5 washes at 30 degrees celsius. Please read size guide and washing instructions below. If you have any questions, please contact customer service . Also read the Rebelz Ultimate BJJ Gi Guide for advice and tips.