In move that helps them go head-to-head with big-shot Amazon (and, potentially, Uber) in the same-day delivery space, Macy's and Bloomingdale's have just announced partnerships with Palo Alto-based Deliv. The startup delivery service already boasts big retail partners like Banana Republic, Kiehl's, Staples, and Brookstone, but Deliv CEO Daphne Carmeli tells the Chicago Tribune that Macy's and Bloomie's are "really our crown jewels."

Both stores will roll out the same-day delivery service this fall in a pilot program in select cities. Macy's will launch in San Francisco, San Jose, Seattle, Chicago, Houston, Los Angeles, New Jersey, and Washington, D.C., using stores there as fulfillment centers; and Bloomingdale's will start with S.F., San Jose, Los Angeles and Chicago.

Deliv operates kind of like UberX, crowdsourcing drivers who opt in to deliver goods within a 15-mile radius, charging a fee for each delivery.

On Facebook, Deliv calls this a "huge win" for them.

[Chicago Tribune]