Designed by Spyderco founder Sal Glesser and inspired by the groundbreaking innovations of French knifemaker Fred Perrin, the Swick is a purpose-designed personal-defense tool. Its most distinctive feature is a Perrin-inspired index-finger hole that locks the knife into the user's hand for superior grip security. Sized for a man's hand, the 1.03-inch-diameter (26.1 mm) hole is flanked by a full-flat-ground Wharncliffe blade and a full-tang, pistol grip-style handle. Concealed internal pins secure a pair of peel-ply-textured scales to the handle, and a strategically placed section of jimping (textured grooves) on the spine provides a non-slip thumb ramp. Made from ultra corrosion-resistant LC200N, the Swick is accompanied by a custom-molded Boltaron sheath with a fully adjustable G-Clip and breakaway ball chain to offer a full spectrum of carry options.

The Swick 6 is identical to the Swick 5 in every way—except for the size of its index-finger hole. At 0.91-inches (23.1 mm) in diameter, its reduced size is more appropriate to ladies' hands, ensuring them a secure grip in even the most demanding circumstances.