Two piece stretch velvet set - top and elastic waist pants

Worn once and now my size has changed- in excellent condition. Fits true to size. Top has adjustable straps, is 26.5 inches and pit to pit is 23.5 inches Pants - waist laying flat 20 inches, stretched out Overall length 38 inches, inseam 26 inches- i’m 5 ft. 6 inches and they are the perfect length.