Blackburn's Outpost Elite Universal Seat Pack has everything we need to get after our biggest weekend warrior goals. It features a T6061 alloy wing that fixes securely to our saddle, and a removable waterproof dry bag that keeps our essentials dry. This pack is stable enough not to swing around, even if we're pedaling over tough terrain, and a scuba-style air-bleed valve helps with compression while we're off the bike.