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.
Item No. » YP-TBXTM
SAVE 29% = $8.00