Michele Boschetti founded Miss Grape in Veneto, Italy in 2014 after creating luggage for his own unsupported bike packing trips. This is the smaller of two Cluster bags, which come in 13 or 20-litre sizes.
The 418g Cluster is made from a dotted black nylon fabric that’s highly abrasion- and tear-resistant but still flexible. A polyurethane coating makes it water repellent, but the corner seams aren’t taped, so you’ll need a liner.
The underside and below saddle section are covered with a tough wipe-clean PVC layer, and a roll closure with adjustable buckles keeps differing load volumes snug.
Cluster 13 stability
Two Velcro straps with rubber backing combine with a rubber portion on the bag to grip the seatpost and you’ll need about 20cm beneath your saddle rails to fit it.
Strong polypropylene straps loop through each rail and are tightened by buckled straps that extend from the base. Even when fully laden and riding out of the saddle on uneven ground there was minimal sway.
Cluster 13 performance
After stuffing the Cluster with my sample load, I still had some room to spare. Judicious kit selection and spreading spares out in to pockets would allow the thrifty packer to manage a couple of days’ travel in reasonable weather.
The bag’s position never interfered with pedalling, either.