Bafully Postpartum Girdle High Waist Control Panties for Belly Recovery Compression Butt Lifter Slimming Underwear

My waist is 28" but my hips are 40" will the medium be too tight? I don't want to order the large and not get much of a waist reduction :(

Iam a crossdresser would this be comfortable under a tight pencil skirt

Is it a slippery material? Will it make jeans slip down/ keep having to pull jeans up?

Hi, would these be any good for back support please? Also does it roll down at the top? How do they feel round the crutch area? Thank you 😊