M&S' three pack of slim fit school shirts are the ultimate school time staple. Each shirt is designed with timesaving Easy to Iron technology, a quick press and they are ready to go. For the younger sizes (up to 8 years), they come with M&S' practical Expandicuff™ elastic in the cuff that makes it easier for children to dress and undress. These shirts are slim fitting with a narrower cut that fits closer to the body. We are transitioning the polyester in this garment to recycled polyester. While we transition, customers may receive items made with either sustainable sourced cotton and recycled polyester or just sustainable sourced cotton and polyester. Slim Fit- a 4cm narrower cut through the waist and/ or body.