SCOYCO Cycling Knee Protector, Lycra Fabric Perforated Ventilate PP Shell Shockproof Breathable Kneepads for Outdoor Sports (BLACK,XL)

Very comfortable without being restrictive.

They're very good, and very comfortable. The problem that I had is they don't open all the way up in the back, you have to slide your foot and leg in, and they have a rubber backing on the inside that made them very difficult to slide over jeans. I thought about cutting them up the back, but ordered a different pair instead. If you're wearing them a different way, you'll like them. I went with the Alpine Stars look-alike pair instead, solely because they open up in the back.

For me it fits good, but inside the pants.

Use these while riding dirt bike in desert. They fit great, are really comfortable and provide good protection including a hard in plastic inner knee cap