Fully Lined. The strap in the back can be unhooked to wear the bodysuit easily. There is a zipper in the back as well.

I am selling this because I am 5'7" and too tall for it.
Recommended for people who are short and have a smaller torso.

The fabric is stretchable. Additionally, The bodysuit can be altered because it has a seam allowance of almost 4inches.

Feel free to ask any questions.

Not sure about the fabric. Slight defect in the lining of the top (not visible when worn). Please refer to the last pic.