Spyderco will undoubtedly fulfill many knife needs with the introduction of the Delica and Endura with Emerson’s Wave opening feature.  These models take all that’s great about a Spyderco folder and combine it with the blade-opening feature made popular and patented by Ernest Emerson.In addition to the Emerson opening feature the Delica 4 features VG-10 stainless steel blade and lightweight FRN handle material.