I just got a 10 pack of SDK V2 small. They claim to only fit up to a 29" waist. I was skeptical of that because I have a 32" waist and tape the mediums almost all the way to the center. The smalls are tight on me, but they still fit, with the tapes fitting securely on the edge of the landing zone. I like a small fit for daytime use, which is why I used Goodnites L/XL before these. The absorbency suffers a bit compared to the mediums, but they still hold a lot. I'll give these a public test run to make sure they're discrete enough and then probably switch from Goodnites to these if I'm convinced they can't be detected under my clothes.