adidas via eBay offers the adidas Women's Tubular Doom Sock Shoes in Trace Purple/Maroon or Night Cargo/Real Teal for $39.99. Coupon code "JSPORTY" cuts it to $31.99. With free shipping, that's the lowest price we could find by $38, although we saw them for a buck less in January. They're available in select sizes from 7 to 10.