From USA Judo:

Athletes are advised that in order to participate in any IJF event (including Cadet, Junior, Senior and World Masters Championships as well as World Cup, Grand Prix and Grand Slam events), they must wear a gi with the new backpatch.
According to the IJF, the following changes have been made to the backpatches:
· Size of back number, better usage
· Fabric of back number for a better grip
· Font used for names, better visibility
· Size of NOC code, visibility of the name
Click here to view the new backpatches.
To order your new backpatch, visit www.mybacknumber.com.
Leave a Reply