The Ortlieb Seat Pack is a tough bag for all your bikepacking adventures. Attach directly to your seat post and not only will it offer up to 16.5L of space, it even acts as a back fender when riding in wet, muddy situations. This rolltop is waterproof, so whatever you've stuffed inside will stay dry the whole ride. Cinch it down to 8L or let it open to its full space depending on what you're carrying for the day.
So sorry, but only 4 items are allowed for comparison, so we're comparing the first 4. I blame the gnomes and so should you.
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