Space Bag 4 Large Plus 2 Travel Bags (Set of 6) for $16.00. Here is a screenshot for reference. Use free site-to-store and pick up in-store to save on shipping charge. The large bag measures 21.5″ x 33.5″ and the travel bag measures 18″ x 22.5″. As a comparison, Amazon has one set of 3 large bags for $15 and 2 travel bags for $7, which comes to a total of $23 for 5 bags.