hills rotary hoist rain bag CTR Mountainsmith Shoulder Fits a full Hills Heritage 5 Clothesline Product

The zipper is fully hidden which protects your wallet/laptop/smart phone/others inside backpack away from thief

Or, if you're planning on lacing up your trail shoes for an extended length of time, a running backpack can hold more food and extra supplies than a hydration vest, which is better for storing the essentials (think water, a few energy gels and a light waterproof jacket)

The three liters of storage is the sweet spot for a typical daily ride, and Ortovox crammed a lot of smart details into that space

Back in February I used this setup on an overnighter where temperatures plummeted to somewhere around 5F