Improvements made to original sheath
I have (and love!) a Malco duct knife. After a year of daily use, the sheath split at the seam. Malco graciously honored their lifetime warranty - which, believe me, not every company does, and especially because the tool itself was still 100% and only the sheath failed, I half expected Malco to say the sheath wasn't covered. But not Malco! They promptly sent a replacement, and they have recently made some improvements to the sheath over the past year. For one thing, the retainer strap has moved up a couple of inches, which makes its retention a little sturdier. But way more importantly, they have added a plastic bucket to the point of the sheath, exactly where mine had failed! I'm certain this improvement would have prevented my original sheath's failure, and I am very pleased that they stand behind their products and continue to improve their designs.
I reserved a star because I think a snap would last forever while Velcro is less sustainable. But hey, in two years when the Velcro fluffs off, Malco will probably send me another improved design. I bet it will have a cool snap with Malco's logo on it.