okay this is just a guess but.... according to the Lesportsac website, no one except LeSportSac is supposed to sell the bags directly online. I think this is why Pulse had to take their bags off their online store. By renaming the bags, maybe Metropark is hoping that searches by Lesportsac won't find them?
I'm guessing the big department stores like Nordstroms and Macy's have some kind of an exemption to the policy.
Here is the policy, pertinent pars put in bold by me):
AUTHORIZED DISTRIBUTION OF LESPORTSAC PRODUCTS:
LeSportsac merchandise is offered for sale ONLY through the following channels of distribution:
(1) LeSportsac retail stores,
(2) LeSportsac catalog,
(3) authorized distributors,
(4) authorized department stores,
(5) authorized specialty stores and catalogues,
(6) authorized duty free locations, and
(7) on the internet EXCLUSIVELY at lesportsac.com.
LeSportsac DOES NOT authorize the distribution of its merchandise through individuals, street vendors, unauthorized retail locations,
or any website other than lesportsac.com. (For a list of authorized distributors, please see our online store locator).