?Deity's collaboration with global saddle leader SDG Components. An SDG base topped with a Deity foam mold, the Speedtrap uses the highest quality mid density EVA foam for resilient durability, a soft synthetic cover for minimal wear, and high end kevlar sides to protect your seat while giving you the grip where you need it.Hollow chromoly railsHighest quality mid density EVA foamHighest quality Kevlar sides with embossed synthetic coverD2 edge flex - provides softened edges for optimal pedal strokes