You can choose either silicone nipple covers or silk nipple covers. Both work very well, but we can recommend one above the other in certain situations. We recommend the silicone nipple covers if you have clothing that rubs a lot, or if you have large areolae, as the silicone nipple cover is a bit bigger than the silk nipple cover.
We also advise you to use the silicone nipple covers if you have very sensitive areolae, as the silicone nipple covers have a lower adhesive power than the silk nipple covers. Both types of nipple covers will stay put during some perspiration; however, if you sweat a lot, we recommend that you use the silk nipple covers, as they have a stronger adhesive, which holds better than that on the silicone nipple covers.