The KP Industries Knee Pro Ultra Flex III Tactical kneepads are jointed, so they move in unison with all knee movements. With this kneepad, crime scene investigators can be down on their knees for 8 hours collecting evidence without any pinching or binding behind the knee and no cutting off of blood circulation to the lower leg. The latter aspect is a huge problem when wearing standard types of kneepads. Our pads have straps that are located well above and below the kneejoint, so the veins that come to the leg surface behind the knee joint are uneffected by the tension of the straps. Simply put, the KneePros can be put on in the morning and worn all day without users knowing that they have a pair of pads on. If users are thinking about how uncomfortable their pads are, then they’re not concentrating on the evidence.