Portero is one of the largest pre-owned luxury vendors on the internet. They have a strict policy that ensures that all products listed on their site are completely authentic at all times. They provide buyers with a "100% authentic guarantee or your money back" policy, which adds to their trustworthiness. Portero sells a variety of pre-owned luxury items including bags, watches, jewellery and more.

Portero sells numerous luxury brands including Hermès, Chanel, Rolex and Cartier. They have a main focus on Hermès Birkin and Hermès Kelly bags. Customers can personally connect with Portero experts for advice and to have them find specific luxury items. This allows buyers to get their hands on incredibly rare and coveted items.

They sell many items in pristine condition, but customers can also get their hands on items that have more wear for a cheaper price tag. You can also choose to sell your bags on consignment with them, which means they sell your bags for you and take a portion of the profits. Portero has headquarters in New York City, but they accept customers from all corners of the globe.