Greg Dash made the first "Bite" with a snapping strap, which keeps it in the sheath, a little over 4 years ago. He sent me this knife (top knife in the picture) and told me that he named the snapping strap the J-Lock after me. (J - for Jeremy) Greg has since partnered up with the Boker company and they are now making a very similar knife (designed by Greg) which is named the J-Bite. This knife still has the snapping strap and it is still called the J-Lock. Greg was kind enough to send me the first one made by Boker as well, as a gift. I am overwhelmed with gratitude at all of Greg's kindness.