eBay has the adidas Originals Men's NMD_R1 Camo Shoes (Clear Brown) for $80 - 20% off in cart = $64 with free shipping. Available in most sizes from 8 to 13.
eBay has the Crocs Women's Waterproof Chelsea Boots (Black or Dark Green Camo) for $23 with free shipping. Available in select sizes from 5 to 9.
eBay has the Dockers Men's Kenworth Oxford Shoes with NeverWet (Brown) for $33 with free shipping. Available in sizes 7 to 13.