Where to find

Does anyone out there know where to find a source for cotton ripstop? The kind of material used for military BDUs. I've looked all over but had no luck.

 

BDU's are a cotton nylon blend. A very unique material texture. On the tag of my shirt it says,

1. Wear ourside of trousers
2adjust closures to ventilate avoid overheating of body
3 Machine washing....
4 Hand washing.....

5 DO NOT WRING OR TWIST
5 DO NOT USE CLHLORINE BLEACH OR STARTCH
6 dry at low heat.....

Cant beleive my shirt actually has isntructions to wear.....