Are these comfortable for jumping around on, doing aerobics, etc. while barefoot, or will they tear up foot skin because they are textured?

Our 7/8" Tatami Tiles were designed with bare feet and socks in mind. These tiles will not tear up your feet and are great for jumping around and some aerobics. With some side-to-side movements, you may see some tile separation. To help alleviate that, we recommend placing some double sided tape under the tiles.