M-size camouflage tights using NIKE's DRI-FIT technology. - Brand: NIKE - Type: Tights - Size: M - Design: Camouflage pattern - Function: DRI-FIT - Length: Ankle / Cropped Thank you for viewing. I have worn these a few times at a sports club. There is a convenient pocket on the waist for storing locker keys, etc. The black part on the back of the legs (see image 6) is made of mesh material, so they should be comfortable in the upcoming warmer seasons. How about these for a change of clothes at the gym? I have a small dog. If you have allergies, or if you are concerned, please refrain from purchasing.