The Scout Nylon Short in Olive from Knickerbocker, NYC. 

Details
The Scout Nylon Short Is Designed For Outdoor Enthusiasts Yet Suited For Everyday Wear. Made From Lightly Brushed, Water-Repellent Cotton And Nylon, These Elasticated Shorts Feature A Drawstring, Bellowed Front Pockets, A Back Patch Pocket And A Back Welt Pocket With A Zipper. Their Relaxed Cut And Ample Storage Make Them Ideal For Life On The Go.