The term 'TYPE OF BOOT' can be summarized by two crossword solutions: HIP (3 letters) and GOGO (4 letters). HIP is an abbreviation for High-top Insulated Protective boots, which are designed to protect the wearer from extreme cold temperatures. GOGO boots are a type of boot that originated in the 1960s and were popularized by the go-go dancers of the era. They are characterized by their thick soles and high heels.