/cgl/ - Cosplay & EGL

Sewers of /cgl/, I am working towards making a combat vest for a costume. I am trying to recreate the vest pictured on the right of my image so that I can cosplay as the guy on the left.
What sort of materials would you recommend for this kind of thing? What durable fabrics and thread would be most appropriate? I have a sewing machine and needles, so I'm covered on that (I think).
I've got a general plan to form one strap at a time and then move to the creation of the plate carrier and after all of it is in good condition, move on to the pouches and accessories.
I'd appreciate any advice I can get.