Not everyone trains in the same way, and you need to choose an outfit that "fits" perfectly with your sporting habits.
For runners, choose an airy short, with a light and anti-perspirant material, like the FBC Sprint Short with integrated shorts.
For weight training, you can protect your back by wearing shorts made of a thicker, covering material, such as the Rixe Short, (also perfect for combat sports or CrossFit) or the Rally Leggings, which ensure great freedom of movement (especially in loaded squats!).
I CHOOSE AN OUTFIT IN WHICH I FEEL COMFORTABLE TO MOVE AROUND IN
There is nothing worse than doing sports in an overly tight outfit: to stay at your best, you need an outfit in which you feel free, held but not locked in.
The FBC shorts have an adjustable elastic waistband, and all FBC products are designed to prevent unpleasant rubbing as much as possible. Fewer seams, but still just as resistant: that's what we like!
Generally speaking, you should be able to completely forget that you are wearing clothes (not literally, eh!) and concentrate on what matters: the training and the effort you put in.