The tag on this slip reads Dac Nyl Cotton 36. It must mean that it is a blend of dacron, nylon and cotton. It has these wonderful very tiny pleats along the top of the bodice and along the bottom. On the top the pleats are in between two rows of white lace. Vertical darts and adjustable straps. Stated size 36. Flat measurements as follows: Bust 36", Waist 32", Hips up to 38" and Length from front V 36.50". Excellent condition.