I usually take the shorts in size XL, and that's what I did here. As can be read in other reviews on this product, I confirm that large size. The product comes from Germany with DHL (then the job in France), suddenly exchanged for a smaller size keeps the obstacle course, I have not even tried. Flocking "RED" is reflective for the night. The bottom of the shorts, red, rather thick, but I do not think there is in the gel (and at this price it would be surprising).