This medium-sized Blackburn Outpost Frame Bag is an ideal companion for a week-long adventure or an all-day pleasure bike ride. It features an expandable bottom compartment, giving you extra space for essential gear. We've carefully designed the bag with thoughtful organization. Each compartment, pocket, and feature is tailored to ensure there's a perfect spot for everything you need. Whether you need more space on some trips or less on others, this bag can expand to meet your needs. It's made with Outpost water-resistant coated 70D ripstop nylon and polyurethane zippers, offering great protection against the elements. No matter what shape or size your bike is, the adjustable mounting systems allow this bag to fit almost any bike. The bag comes with a water bladder hydration port on the drive side, and the included straps can be mounted in multiple locations for a secure fit. There are also several mesh and slip pockets, plus a main compartment baffle. Dimensions for the large size are: length 480mm/18.9in, width 65mm/2.56in, height 160mm/6.30in, and weight 402g/0.89lbs. For the medium size, it's length 420mm/16.54in, width 65mm/2.56in, height 160mm/6.30in, and weight 360g/0.79lbs.

Using this Blackburn Outpost Frame Bag is easy. First, adjust the mounting systems to fit your bike properly. You can use the included straps and mount them in different locations for a secure fit. When packing, use the expandable bottom compartment for larger or extra items. The various mesh and slip pockets are great for small items like keys or snacks, and the main compartment baffle helps keep your things organized. The water bladder hydration port on the drive side is handy for easy access to water during your ride. As for maintenance, keep the bag clean by wiping it down with a damp cloth after use. Avoid exposing it to sharp objects to prevent tears. If it gets wet, let it dry thoroughly before storing it. This will help keep your bag in good condition for many adventures to come.