After learning that some customers were having an issue with the retention of their Enuff sheaths, we sat down with our engineers and our Japanese maker to analyze the problem and address it. Based on that analysis, we redesigned the mouth of the sheath to increase its purchase and tension on the knife handle. We also added a small pin to apply pressure to the spine of the blade and eliminate movement or rattling of the knife in the sheath.
After receiving the improved sheaths, we tested them extensively and approved them. They began shipping with all Enuff orders in March. Odds are, if you have purchased or received an Enuff in the past month, it already has the improved sheath.
If you own an Enuff with a first-generation sheath and have had an issue with its retention, you can exchange it for a second-generation sheath. Please send the sheath only (there's no need to send the knife), along with your return shipping address, a daytime phone number, and a brief note requesting the replacement to:
ATTN: Warranty and Repair
820 Spyderco Way
Golden, CO 80403 U.S.A.
Thank you for your patience and support while we addressed this issue.