s/m) Invisible One-Line Crotch Design Women's fleece lined tights feature a proper invisible one-crotch seam design, with no extra lines on the buttocks, for comfortable and breathable wear, and to avoid any awkwardness. Our thermal tights can perfectly highlight the curve of the hips, preventing the crotch from sagging and slipping, and fit snugly with your body, neither too loose nor too tight. Plush and Thick Warm Tights Fleece lined leggings are made of warm and comfortable materials, soft and smooth, and are skin-friendly. The sheer pantyhose have great stretch and compression, and do not slip, bunch, or sag easily. Slim and Body-Shaping Elastic high-waisted leggings with a wide waistband can effectively shape the waist and abdominal curves, flatten your abdomen, and avoid binding or bulging, making your body look slimmer. These semi-sheer lined tights have enough stretch to hug your legs without restricting movement when worn and are easy to stretch and recover.