Firstgear's newly announced Laguna GPS tank bag/backpack has much to commend it. For starters, given its high density black Styrofoam walls, it most likely floats. The tank bag market is full of choices, forcing vendors to find competitive advantages. Firstgear is no exception, tossing up many bells and whistles, including a durable bag with cellophane window and snaps to carry your bag. Yes, it's a paradox: a bag used to carry a bag. A nice-to-have item, but not necessary, since the tank bag comes with three different ways to carry it once it's zipped off your bike.
At the front end is a nicely padded handle with stitching that could lift 100 pounds or more. There is also a detachable shoulder strap (like a laptop bag), and given that it serves double duty as a backpack, two-inch padded shoulder straps are permanently attached along with a body strap, good if you plan on riding with it that way. These backpack straps are smartly located on the bottom, where they will never flap about. They are actually zippered shut by the attaching base platform.
The platform attaches to your gas tank by one of three different ways-magnets, straps or suction cups. The four magnets are round and nest inside of Velcro® corner pockets. For tanks made of resin, the magnets can be pulled out and replaced with suction cups that come included. However, attaching the suction cups requires a 7mm socket wrench and is not an easy task, since you have to work inside the pockets. With some aggravation I was able to attach them, but I would not recommend you do this at roadside. (Also, suction cups won't work well in freezing temps.)
The platform also serves as a 10"-long windowed roadmap case and its bottom won't scratch your paint job. Like the bag, it's made of the same ultra durable 1680D nylon and coated with PVC and UV protection. You can feel the quality throughout.
The Laguna is roomy at 15" by 13" with a depth of 10" plus an extra 2" zippered vertical expansion. It has zippered side pockets with reflective stripes and a Velcro® change pocket in front with a grommet opening. One of my pet peeves is wimpy zipper tags, but the Laguna includes half-inch nylon tags on the main and GPS compartment zippers that get the most use. Where it attaches to the platform is a wimpy string tag.
I also appreciate that the rain cover will never fly off at speed, since it is attached from within its own zippered pocket at the far end of the bag. An elastic band and tightening cord secure it further. Its large cellophane window won't block the GPS unit, which has its own pop-up pocket attached to the underside flap. A nice feature, since you can easily hide the GPS when not in use. Unzip the GPS top compartment to reveal the GPS. There is no hardware to keep the GPS fixed in place. If your bike has no wind screen and is a low-barred café racer, the wind may close this GSP flap down, defeating the whole purpose of this feature.
When I tried to attach my Zumo 550, unfortunately it didn't pass the test. Garmin is partly to blame because the Zumo 550 requires a power harness which will not fit into the tank bag's GPS pocket. What's needed is a power cord that affixes to the Zumo directly without need for the harness, but Garmin does not make one. The grommets, too, are not sized large enough to allow the Zumo's power cable access; you'll have to auger out a larger hole. That said, the Zumo 220 could be accommodated by the Laguna bag because it does not require a bulky harness. Once attached, tiny Velcro® loops inside the bag can route cables out of the way.
The Laguna GPS Bag is built to primarily accommodate GPS units made for automobiles. On average, the auto GPS is much more affordable (around $200.00 or less) than a motorcycle specific GPS, such as, the Garmin Zumo 550 (MSRP $649.99), but functions are very similar. The auto GPS units are not waterproof which is why the pocket is built internally for protection and easy transport (Zumo 550 is a waterproof product).
Also located on the top flap is a 4-¾ by 3-¼ inch cellophane-windowed compartment designed to hold a smartphone or MP3 player. My iPhone fit, but larger Android phones by HTC may not. This, too, has a grommet through which to feed a cable.
The Firstgear tank bag is built with quality material and stitching throughout, MSRP $169.95, http://www.firstgear-usa.com (866) 302-5676.