Chumian3 Clip&1 Zip 6 Steel Boned Waist Trainer Corset Sport Workout Body Shaper Tummy Control

Hi i'm a guy i want to buy this waist sincher. my chest size is chest 35.5 cm waist size 36.5 cm. what size would you recommend i buy

How long should it be worn a day ?

Should I return it and size down if I’m able to clip it on the tightest loop?

What are the instructions on drying?