A sandal part is an essential component of a sandal, which is a type of open-toed footwear. The three sandal parts that can be found in a crossword puzzle are the THONG (5 letters), STRAP (5 letters), and tstrap (6 letters). The THONG is a thin strip of material that goes between the toes and connects to the sole of the sandal. The STRAP is a band of material that wraps around the foot and ankle and connects to the sole of the sandal. The tstrap is similar to the STRAP but has an additional piece of material that runs across the top of the foot and connects to the sole of the sandal.