The axes retain all of their essential features. All three feature a highly sculpted shaft. The base and the top of the handle are adjustable. The Nomic now has a hole in its base to attach leashes and now has a solid handle. It also comes with weights on the pick. The hammer is interchangeable. It comes with the Pure Ice pick although this is again interchangeable. The Ergonomic has the same shaft as the Nomic. The handle differs to make it Ergonomic. The Nomic now has a molded sleeve and the head is deeper to eliminate any wobble.