Just as comfortable in overhead storage as it is in train cars. the Porter 46 is the largest carry-on compatible pack in the series. This versatile weekend getaway bag offers the simplicity of a gear-hauling duffel along with everyday organization and travel convenience. A stowaway harness provides backpack-style carry when you need it and storage when the bag is checked. A sustainable buildincluding recycled fabrics. bluesign-approved materials and PFC-free DWRdoesnt compromise Ospreys commitment to quality design. construction and durability.