Flex 5.2 Shoulder Pads Longer arch cut accommodates more positions Extended body cushions in both front and back Provides extra coverage and protection Size Chart XS: Shoulder Width: 11” - 12”; Chest: 26” - 28”; Weight: 75 - 90 lbs. S: Shoulder Width: 12” - 13”; Chest: 28” - 30”; Weight: 90 - 105 lbs. M: Shoulder Width: 13” - 14”; Chest: 30” - 32”; Weight: 105 - 120 lbs. L: Shoulder Width: 14” - 15”; Chest: 32” - 34"; Weight: 120 - 135 lbs. XL: Shoulder Width: 15” - 16”; Chest: 34” - 36"; Weight: 135 - 150 lbs.