eBay has the adidas Crazy BYW Men's Shoes (multiple colors) for $45 with free shipping. Features synthetic, lace closure, transparent rubber outsole; heel pull tab.

Amazon has the Under Armour Charged Assert 8 Women's Running Shoes (Black/White) for $32 with free shipping. List price: $70. It features s lightweight mesh upper with 3-color digital print delivers complete breathability, synthetic sole.

Has excellent Amazon Reviews.

Nike has the Nike Men's Renew Fusion Shoes for $48 with free shipping for NikePlus Members (free to join). Available in Black/Dark Smoke Grey/White.

Nike has the Nike Unisex Metcon 6 Premium Shoes (Baroque Brown/Wheat/Velvet Brown/Baroque Brown) for $77 with free shipping for NikePlus members (free to join). Features lightweight, flexible upper, midfoot saddle, deep flex grooves on the outsole.

Nike has the Nike Men's Pegasus Trail 2 Shoes (Cargo Khaki/Light Army/Bright Crimson/Black) for $105 with free shipping for NikePlus members (free to join). Features lightweight, flexible upper, midfoot saddle, deep flex grooves on the outsole.