>>9935772Let me show you what I think is a well-designed hip joint. McFarlane's recent figures utilize a soft PVC undies piece over a t-post that holds individual hip joints on either end. It's a really simple setup really, but works really well. The diaper easily flexes out of the way enough to get high kicks and crouching poses, and it's not actual silicone, it's just a softer PVC, so it should not be subject to the same quick-rot/tearing situation. It also sidesteps the issue of floating undies moving all over by connecting it to the rear of the T-post hip assembly. Like I said, simple, but smart engineering.