I recently purchased the new improved Simms Taco Bag through Manic Tackle Project here in New Zealand and absolutely love it ! Its perfect for transporting your waders and boots, it also fits a rod tube nicely and has a zippered pocket for your reel and other small bits and pieces.
Once opened it turns into the perfect change mat allowing you to change in and out of your waders without touching the ground thus keeping your feet nice and dry.
Made from PU-coated 600 denier ballistic nylon-shell fabric so it's tough , and includes a large circular design that comfortably holds a pair of waders and boots. It easily zips closed keeping your wet gear inside and preventing it from messing up the interior of your vehicle , while the mesh vents help prevent mold and mildew from forming on your boots and waders
. Another great piece of Simms kit !