"No Gym Required is certainly in a league of their own after just the initial look & feel. I personally like heavy shoes. My feet feel less stressed and for some reason i just feel better. NGR shoes weigh 1-3 pounds heavier (depending on sizes) and come with inserts you can replace the weights with to wear as regular shoes. I have yet to replace mine. I absolutely love the shoes. I feel great in mine. I instantly feel taller, slimmer, and just an all round great inner feeling. I do notice muscle movement more in my thighs, calves, and butt.