Crypsis product have an exposed tube and are seamless without any faceplate.
Crypis can have DNA 75, DNA 60, Dicodes 60, YiHi SX475J.
Tube can be Brass, Stainless Steel, Mocume, Damascus, Leather, Patina, Wood, DLC, Silver, Gold, Titanium, etc.
There are 3 types.
RAF type has a stylish curved cut on the back for the exposed tube.
EVA type has a stylish unique cut which is very comfortable for holding the mod. Fingers goes within the cuts and sits very naturally on there.
ODY type has the same stylish and unique cut as the EVA line but it is also heavily freehand crafted following the curves of the back all the way to the front of the mod.