Reebok 4K Junior Shoulder Pads. 4K shoulder pad features an integrated / molded Sternum protector that fits close to the body. Adjustable / removable belly protector for added coverage. FITLITE™ construction vented foam provides quality lightweight protection. FITLITE™ shoulder caps allow for an improved range of motion. Molded PE inserts at clavicle for additional protection. Sternum and spine protection: Dual layer foam with plastic inserts. Liner: Micro-mesh with vented foam.