1. SeatRack interior cargo rack 

Positioned as an alternative to roof racks with their wind noise and reduced fuel efficiency, SeatRack brings its own set of compromises, not least of which is taking up two seat places. It works by using the head rest slots to install an interior rack which can carry long items, such as surfboards and skis, and strap them securely in place. The post width is adjustable, with sleeves to assure a snug fit. $129 from seat-rack.com

2. Memobottle

Why should a bottle be bottle-shaped? It's not necessarily the ideal form to slip into a business case or messenger bags. Memobottles take their shape from notebooks – rectangular, flat and thin – so they can slot in with your journal, tablet or even laptop. Continuing the theme, they are designed against paper sizes, available from A6 up to A4, or a litre in liquid luggage. €35 for A4 1 litre from Stock Design, Dublin

3. SealLine urban shoulder bag

SealLine has a robust pedigree of technical bags for outdoors activities like sailing and kayaking. Some of it has rubbed off here on its range of urban shoulder bags with their tough RF-welded waterproof 600D, urethane-coated construction. There’s an internal divider, separate compartments and the opportunity to add more external accessory pockets. From $165 at cascadedesigns.com Tom Kelly @tomtomkelly