A summer topper is a type of hat that is worn during the summer months. The crossword solutions for the term 'summer topper' include 'PANAMA' (6 letters), 'BOATER' (6 letters), 'sunhat' (6 letters), 'panamahat' (9 letters), and 'sunbonnet' (9 letters). PANAMA hats are traditionally made from straw and have a wide brim, while boaters are typically made from stiff straw and have a flat top and brim. Sunhats are usually made from lightweight fabric and have a wide brim to protect the face and neck from the sun. Panamahats are similar to PANAMA hats but are made from a finer weave of straw. Sunbonnets are bonnets with a wide brim that are designed to protect the face and neck from the sun.