McHale examples:
http://www.mchalepacks.com/letter/index.htm

Blend weave of UHMWPE & high-tenacity polyester.

fabric weight 0z/yd:
100 = 2.9
200 = 3.5
400 = 4.7
800 = 8.5

Challenge Ultra 800d specs.

Tear Strength: ATSM-D2261
250+ lb (warp) 250+ lb (fill)

Abrasion: ATSM-D3884 (Taber test)
10,500 + cycles

Water resistance: 200+ PSI , 13.8+ Bar.
suitable for seam taping.

Weight: 8.5 Oz/yd.

Cordura 1000d mil spec.(DTL-32439A)

Tear Strength: ATSM-D2261
54 lbs (warp) 47 lbs (fill)

Abrasion: ATSM-D3884 (Taber test)
710 cycles.

Water resistance: DWR coated /
No measurable rating avail.

Weight: 12 Oz/yd.

-Bulletproof and Waterproof don't mean Idiotproof.