Bikase Big Daddy Rack Bag 2

Large expandable storage bag with waterproof main compartment and drop down panniers for extra storage
Integrated water bottle/drink holder and included shoulder strap add to the convenience factor
RF seam sealed inner liner and waterproof zipper on main compartment
Universal and durable trunk bag with plenty of space for your belongings
Front and bottom straps securely attach the bag to the rack
Reflective side and rear accents for improved visibility and safety
Side zipper pockets for additional storage
Handle on top for carrying while off the bike