The model is 5 ft 4" and 155 pounds wearing size M on the pictures shown , as you can see it's a comfortable fit . Comfortable fit -M fitted look -S looser fit L for this model. If you are not sure about the size and debating between two sizes, I recommend to go with the bigger one . Fabric Type 80% Polyester, 20% Spandex Care Instructions Hand wash machine wash Country of Origin China About this item • [Design] The costume has fully sewn bodysuit and separate mask with zipper, easy to disassemble. The eye mask part adopts advanced technology, which is more realistic and not deformed than the general mesh eye mask. • [Experience) 3-5 times the ductility, the color remains the same after stretching, and the amazing resilience makes the clothes less prone to deformation and damage, helping you better restore the characters in movies and cOmics • [Use) Ensure that the body is perfectly satisfied.Machine washable, hand washable. Very convenient to use.It is not easy to deform and damage if worn for a long time. • [Material Quality It is made of 80% polyester and 20% spandex fabric, with strong elasticity and breathability that fits snugly against the skin. Suitable for people with sensitive skin, comfortable and safe, with ultra-high stretching and fit