There’s no reason why their socks shouldn’t be pretty, and this five pack of trainer liners for kids features a lace trim that they’ll adore. We’ve crafted these kids’ socks from a breathable cotton mix in a low cut that’s perfect for wearing with trainers, finishing them off with M&S' antibacterial Freshfeet™ finish that prevents unwanted odours. All of the cotton for M&S' clothing is sustainably sourced and always will be.