The Blackburn Outpost Top Tube Bike Bag ensures your essentials are secure and within reach while cycling. Constructed with durable and lightweight nylon and ripstop fabric, it offers water resistance to keep the contents dry, while featuring an exterior mesh pocket. The bag also includes an adjustable mounting system, allowing it to fit almost any bike. Inside, a large interior with an adjustable organizer and a zippered pocket for ID and cash make it an ideal choice for those on long rides or for daily commuting.