Similar in aesthetic appeal to the Terra, the Sidus boasts subtly different ergonomics. Cutouts to the handle of the Sidus allow for a stronger hold, while Poltergeist works standard double torx screws were again fitted for an extremely sleek yet refined finish. Like the Terra, a typical Poltergeist works styled opening hole has been cut out with three chamfered inner layers which giving great purchase on the users thumb or middle finger to open this bad boy in a split second. In comparison to the Terra, the design brother of the knife, is more compact with 3D curved handles and feels as such in the hand. Going further than this the whole handle has been chamfered along the sides to which give the knife a more harmonious feel. The Sidus is a first for us, brandishing a new material in Copper Shred Carbon Fiber and Moon Glow Shred CF. Unlike other materials Shred CF is hard to find on budget knives. However we made this work for this model allowing any and all users the chance to experience the highest quality of finish with the newest handle material.