Leather sheaths came originally and were changed to Kydex
about five years ago. A couple of SOG's knives use a hybrid leather/kydex sheath (the Field Knife and Field Pup...not sure off-hand if any other have converted), but I'm fairly certain both the Pentagon and Mini Pentagon are both currently using Kydex sheaths. SOG does have a retail sales department (888-SOG-BEST or
retail@sogknives.com) that sells all their knives, any current product accessory, a few older generation or alternate accessories, and Factory Seconds.
SOG's website is usually about 99.9% accurate and up-to-date (just an occasional typo and a product/accessory change that hasn't yet trickled down to the marketing department). In my tenure at SOG, I was litterally made the changes right to the website and reviewed just about every piece of marketing that was published (even though I was the Customer Service Manager, not the marketing representative).
Dealers/Distributors are a different story. The number of mistakes and plain-old-just-weird information I've seen has been significant. I'm sure they have the best of intentions, but I've talked to many of their owners or other primary employees and their
specific product knowledge is actually quite poor. I don't attribute this to anything except that there is simply too may knife manufacturers and too many knives for one person to have a really good grasp of the steel type, blade length, sheath type, lock type, grind type, etc. of all the knives they carry/represent.