BEROYWomen Quick Dry and Breathable Cycling Skirt Shorts,Bike Skorts Pantskirt with 3D Padded

I see different colors have different sizing? It's confusing. I'm 5'10" and 145lbs, muscular build. would like a few pairs, help!

Is there a seam on the inside of the thigh?

Are the patches leather, or?

can these be put in the dryer or do they need to hang to dry?