I have 3 pairs of these. The first OG black twill, Green ripstop and these blue ones. I have a long haired cat. HOLY CRAP I almost gave up on my black ones. They were literally like a hair attracting mop. I almost gave them away to my gym to use as a mop for attracting hair. Then suddenly, they got good. They are now awesome. I guess they needed to get washed a million times to get soft enough to resist cat hair? The green ripstop ones worked great right away for some reason. No issues ever with the cat hairballs. I wore them so much that one of the pockets blew out and they are getting faded. The blue ones..................I keep waiting for them to break in enough to stop picking up the hair balls. They are ridiculous. They are hair magnets. I should tie it to my romba to help vacuum. This is using dryer balls too. I really want to see the green ones again. Or maybe a grey. I have worn these things for everything including grappling. They are some of my favorite pants ever. These could be an instructors best friend too with a pocket for your phone. We need more gi pants and shorts with pockets.