An essential piece on your sports fishing trip, AFTCO understands the importance of high performance underwear, and created the Tackle Boxers, that are made of 92% Polyester / 8% Spandex and features AFCOOl, quick dry, moisture wicking material and antimicrobial treatment. Along with AFGUARD these are the best fishing underwear to own after making casts on a full day on the water.