DST
*If you have previously purchased the "AXForce 80 Combat," you should choose this racket in 85-89 grams (3U). If you have previously purchased the "AXForce 80 Boost," you should choose this racket in 80-84 grams (4U). And if you have purchased the "AXForce 80 Instinct," you should choose 75-79 grams (5U).