when it comes to wearing a strap on, there is a lot to think about and a lot of styles to choose from but one of the simplest styles to wear is the Love Rider Hipster Harness made by California Exotics. You don't have to adjust any straps or worry about them digging in because this is just a comfy, stretchy cute pair of undies that have an o ring in them so you can wear them with a dong, how easy is that? They come in black or pink and they are 'one size', which I would guess should fit around an AUS size 10 to 14 pretty comfortably by the looks, so definitely not one size fits all but suitable for a fair number of people. The hipster style won't ride up your bum or cut into your tum. They have lace edging, and internal pocket so you can wear a panty vibrator or bullet in there if you like, and a stretchy o ring that will fit most strap on dongs.