So what the heck does TDM stand for? Team Death Match? DanTDM? Time Division Multiplexing? I don't even know what that last one means, but no. TDM stands for Troupes de Marine, a subdivision of the French Army, and it's meant to describe the style of the strap. So how does it compare with the Nylon or Poly straps? It falls somewhere in the middle. The TDM material is not as structured as Nylon, but not as pliable as Poly. It has more stretch than Nylon, but less than the Poly. It's softer to the touch than Nylon, but not as soft as the Poly. See what I mean?