This is a fabulous set! From the 60's. The jumpsuit is made up luxurious Ivory crepe back satin. The collar folds over to make a small cowl in the front. The back is pointed. Zips up the back with a long metal zipper. The sleeves are beautiful and full Bishop style with wide cuff. The legs are super wide with 18" wide opening 36" circumference. Fabric tie belt cinches the waist. The vest is silky black velvet that is fully lined. There are two bows on the front that conceal a hook and eye closure. Excellent condition except for one very small mark on the sleeves that may come out with some care. Best fit would be a S/M however please check the measurements below for a proper fit.
Measurements

Armpit-armpit doubled 36"
Waist 28"
Hip 42"
Sleve 25"
Total length 56"
Inseam 26" but the crotch hangs low
Rise 15"
Leg opening 18" wide 36" all around
Sleeve cuff 4"

Vest
Armpit-armpit 38"
Waist 40"
Hip 42"
Length 55"

This item is sold from an excellent, highly rated vintage boutique in Westfield, Massachusetts.