Abstract: A split sports jacket includes a pair of mating right and left jacket halves with dependent sleeves that cover a person's upper torso and arms. The jacket halves include respective halves of a collar around a neck opening and halves of an elasticized waist band around a waist opening thereof. Respective front and rear zippers retain the jacket halves mated together that extend vertically are laterally centered on the person's upper torso. The front zipper is of upright configuration that zips up from bottom to top. The rear zipper is of inverted configuration that zips up from top to bottom utilizing gravity to stay closed. Respective front and rear flaps allow covering of the front and rear zippers and are securable by snap fasteners. The jacket halves are interchangeable with other mating jacket halves having differing external visual characteristics to change an overall look of the sports jacket such as colors, patterns, patches, logos, indicia, or emblems.