There is no need to remove the trademarks on the legs of sweatpants.
No, it’s a trademark, but it’s actually a pattern. The ones on the outside are usually made very strong, and it would look ugly if they were torn apart.
Sweatpants usually refer to sports pants made of cotton or polyester. Some will have brushed inside to suit autumn and winter wear. Sweatpants are pants made of fuzzy fabric underneath. Sweatpants can be made into the style of sports pants, or they can also be made into the style of other leggings.