Nike Golf Tour Performance DRI-FIT Pants

8 NikeGolf dri-fit light khaki, light stone colored pants. 94% polyester, 6% spandex. material feels smooth with very little stretch. small dark spot, as pictured. two front pockets, two back pockets. belt loops. zipper with two buttons fly closure. these are in excellent condition besides the spot, I have washed these with tide free and clear, but have not tried treating the spot.