Zappos.com has a free refund policy
Nordstroms is known to let customers return an item even a year
Dressmeoutlet.com has a free refund policy
Dressmeoutlet.com offers fashion, beauty and health products so there would be no need for a return but if such situation arises then it will be done at no extra charges.
The new online store Baazkart has a free return policy. For details visit: https://www.baazkart.com/