Slazenger muscle vest junior boys the kids slazenger muscle vest has a simple design that is perfect for completing any everyday casual look crafted with a sleeveless style and a crew neck collar with a ribbed trim for a comfortable fit while the side splits to the seams and the slazenger emblem to the top left of the chest complete the look kids vest sleeveless round neck collar ribbed trim side split seams slazenger branding 100 cotton machine washable