Motorsports riding jacket runs small

Killer four tone vintage black, white, silver, and aqua leather German biker jacket!! READ ALL NOTES!! Size 40 Europe Use following. MEASURES: Shoulders=17.5” seam to seam across front Chest=19” pit to pit across front Hips=17” measured along bottom of hem Length=18” from top of zipper to at collar to straight down front to bottom hem Sleeve length=25.5 from shoulder seam to cuff Sleeve inseam=19” from armpit to cuff Note: padding on both sleeve bottoms have marbled. Some wear marks but moderate.