Timbuk2 isn't joking around when it comes to making awesome saddle packs for biking. Their Seat Pack XT in Medium features nearly one liter of storage, which is more than enough for a phone, a tube, a multi tool, some gels or bars, and a set of tire wrenches. Imagine all that in one ballistic nylon seat bag that weighs just 135 grams.
Built from rugged ballistic nylon construction with waterproof nylon accents
Medium-sized saddle pack holds small essentials such as ID, energy gels, keys and small tools; wide zippered opening provides easy access
Secures to bike seat with adjustable side-release buckle; front bungee secures pack to seat tube
Timbuk2 Seat Pack XT saddle pack features a reflective rear panel that doubles as an attachment point for bike lights