Sneaker securers, also known as lacers, are people who specialize in tying LACES on shoes. They are responsible for making sure that the LACES are tied securely and properly, so that the shoes fit comfortably and securely on the wearer's feet. Lacers use a variety of techniques to tie LACES, such as double knots, loops, and bows. LACES are an important part of any shoe, as they provide support and stability to the foot.