CtopoGoWomen's Inner Pocket Breezy Mesh 2 in 1 Running Workout Sports Shorts Black/Pink

Do these have any secure pockets (for keys), and they are described as red but they look coral/orange, what colour are they?

Can you see the underneath colour all the time or only when moving ?

What size would you suggest for a size 10?

Could I wear these to a pole dance fitness class?