The sneaker part crossword solutions are SOLE (4 letters), TOE (3 letters), INSOLE (6 letters), TONGUE (6 letters), and LACE (4 letters). The SOLE is the bottom of the shoe, usually made of rubber or plastic. The TOE is the front of the shoe, which is often reinforced for protection. The insole is the interior part of the shoe that provides cushioning and support. The TONGUE is the flap of material that runs along the top of the shoe and is used to help secure the laces. The laces are the strings that are used to tie the shoe together.