Early 1960's pair of training trunks was used by boxing icon to be, Cassius Clay. White satin with black trim they carry the manufacturing label of "Pearson" of Philadelphia on center waistband. Size 38 trunks were signed by Muhammad Ali with large impressive “1980’s” signature on left leg in black sharpie. This was part of the Drew "Bundini" Brown Estate sale, with tag number “RK 8816”. Letter of authenticity from boxing expert Craig Hamilton who has researched and authenticated this piece. The trunks are in excellent condition showing superior signs of wear including some light stains and oxidization marks.