First off I need to congratulate the makers of this harness, they really nailed it (no pun intended). This harness is superior to others I have used in several ways but its main advantage is its stability. I have had trouble with other harnesses loosening up during use or with the dildo falling out, not here. The Spare Parts harness is built more like underwear or a jock strap, instead of traditional strap and O-ring harnesses. The effect is that it stays in place better. My partner has also told me she can acheive more intense orgasms because she can better control how the dildo rubs against her clit while she is fucking me. (And considering how soaked it is after we use it, I have to believe her).

Another great aspect of the Spare Parts harness is the quality of the material and workmanship. More than once I have had an intense pegging session ruined by a broken snap-button or worn out buckle. I have had no such problems with this beauty. We have been using it regularly for about a year now and it is a sturdy as the first time she fastened up and bent me over.

The harness is made of a thick spandex/polyester, so it manages to be both strong and stretchy, yet still soft. While other harnesses seem to be made of the sort of material one might use to secure cargo, the Spare Parts feels like a piece of clothing. This attention to material and design eliminates the rough edges and sharp corners that make so many other harnesses uncomfortable. For example, instead of have a few straps wrapping around an O-ring at the base of the dildo, there is a firm rubber ring set in a soft front panel. Thus, no more corners of the straps scratching my bottom when my partner grinds her pelvis into my backside.

Another nice feature is the fit of the Spare Parts. It is adjusted by a combination of velcro and buckles. You use the velcro straps to get the right size around the hips and waist, then you tighten a buckle on either side to get it nice and snug. This simple innovation really sets the Spare Parts above so many other harnesses. First, the straps just make it fit better. Second, you can set the general size with the velcro straps. These straps have a very strong velcro which will stay in place even when put through the washing machine. This allows you to take the harness on and off, by just loosening the buckles, without having to completely resize (or in some cases disassemble) the harness for every use. This also makes it possible to swap out dildos without too much effort.

As for dildos to use with the Spare Parts, may favorite is the Feeldoe. I know that is supposed to be used without a harness, but it helps to have the extra stability when using it for pegging. We also frequently use the Echo, which feels great with its little bullet vibe. Or, if I am feeling like something big, she will strap on the Magnum. All of these work perfectly with the stretchy ring on the spare parts, which I was actually a little concerned about when I first got it. I was worried the ring would either wear out or only accomodate one size; however, we have had no problems so far. Though I imagine it could only be stretched so far and may not work with a very small dildo.