Blackburn: This highly technical and well considered bag manages to be handsome as well. • When used with our Interlock racks, bags can be secured with a single key and the contents can be safeguarded via our compression strap and stainless zipper pulls• Compatible with all standard racks• Padded laptop and tablet sleeves along with ample interior organising• Shoulder strap stays out of your wheel with magnetic clasps• Fleece lined exterior pocket for phone or glasses• Weather resistant fabric and stowable rain cover• 13 Litre capacity