Some of them are. If you wish to get a comfortable yet durable pair, the famous Athleta Salutation leggings are known to be a good option. The stretch fabric is suitable for all sorts of vigorous exercise - including squats - and will not rip as easily as some of the other garments that you may own from other brands. Another thing that sets them apart is the inclusion of a handy side pocket for your phone or any other small items.