It certainly LOOKS like a slip and can be used for one but this is a nightgown! Fabric feels like lightweight crepe de chine but the blend is nylon, rayon, poly (see label photos). Made by Lady Lynne, it's a small one! Straps are trimmed with lace and not adjustable. Side slits, BOTH sides, lace trimmed hem. Very strange that there is no stated size but since it didn't fit on the size 8 torso mannequin, it had to be shown on a hanger because this is a small one! No flaws.
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MEASUREMENTS

BUST 32"

WAIST 30"

HIP 38"

LENGTH 44"