These foam kneepads from Emerson feature a hard protective cap and are designed to be inserted into the kneepad slot in Combat Pants. They can also be tailored into most modern tactical pants with some modification.
Emerson's G3 internal kneepads are designed to be inserted into combat pants for constant protection. The slim foam is dense enough to add protection but thin enough to be comfortable during wear. The hard cap both adds durability to the knees and protects from hard or sharp objects. The kneepad inserts can be trimmed to fit if smaller size is needed.