These do not look as cute in person (they look cheap). They are not uncomfortable but I wouldn't hail them as comfortable either (meh and no arch support). I would NEVER use them for any kind of exercise. They do not support your foot in any way. You WILL get injured. The laces refuse to stay tied too which is weird. I use them for work at a vet office so they serve their purpose, but I will not be buying these again (especially seeing as I bought these in January and they are completely trashed by June- and again I only use them for work).