Outer Shell Expedition Seatpack

At a whopping 16L, this is the biggest bag you can fit under your seat without a rack. For a smaller version, check out the Dropper Seatpack.

It is meant for light, large volume items like a sleeping bag, tarp, and clothes. This bag feels solid even loaded up on the bumpy stuff because it has a 360° internal plastic frame that holds its shape. Rugged metal cam buckles means secure, no-slip connection points. Durable, water resistant construction. Good thigh clearance with room to get behind the saddle. This is a no-frills work horse with one strap for compression and extra gear.

*Must have 4.5" of exposed seatpost and 8" saddle-to-tire clearance

Features

16L max. volume // Weight: 21.8 oz
Specially shaped 360° semi-rigid plastic frame
Rubberized contact patches under saddle and around seatpost
6-point webbing attachments
Corrosion resistant metal-cam buckles
Roll closure with velcro
Compression strap can be used to strap on extra gear
Minimal seam construction for water resistance and durability (the top and sides are one piece of fabric)
PU coated Cordura (water resistant) or X-Pac main fabric +$15 (weatherproof)
HANDMADE IN CALIFORNIA

Instructions

Lace webbing straps as shown in photo below
Attach velcro strap(s) to seatpost
Tighten webbing straps evenly to center and stabilize the bag