RyanMalpiede showed how he makes horizontal belt sheaths by sewing elastic into a loop: http://edcforums.com/index.php?topic=721.0 I cut a short piece of bicycle inner tube and threaded my belt through it. This makes a very comfortable horizontal sheath for carrying my large Victorinox One Handed Trekker SAK. If you use the right size inner tube, your knife will not fall out. I'm always finding new uses for old bicycle inner tubes. Bike shops are a good source of used, but free inner tubes.