These premium versions of Bluegrass’s Skinny pads use a D3O knee cup that hardens upon impact to boost protection without affecting comfort.
With no straps, they rely on the tightness of the sleeve to keep them up, along with silicone grippers at the top and bottom. The mesh back helps keep everything in place and stops the pads flaring when your knee is fully bent. It also stops things getting too sweaty.
I found the pads to be comfortable even on long days in the hills — but that was only once I pulled the lower opening up so that it sat above the calf muscle rather than across it.
The pre-shaped D3O knee cup conforms to the leg nicely, wraps around the knee and offers a decent amount of coverage. It never once restricted movement on the bike. While its high volume means that it doesn’t always feel as tightly pressed to your knee or as secure as the D3O cups on some other pads, it stays put well enough without constant readjustment.