BingrongUpper Arm Shaper Post Surgical Slimmer Compression Sleeves Humpback Posture Corrector Tops Shapewear for Women…

Hiya im 5ft and i need the sleeves to reach my wrist, how long would the sleeves be ?

I'm size 6-8 uk which is better s or m?

If i am size between 12-16 (depending on how broad the shoulder is) wht would be the recommended size be? I was thinking the 2xl? Is this right