BMW Soft Bag
I have the large version on my GS and I love it. GSDonavan did a good and accurate review. I would add that the straps to which the bag is mounted can be attached to your bike and left in place. All I need to do is throw the bag on the tail rack, click 4 straps and off I go - 30 seconds max. I have had other tail bags and top cases and so far, this is my favorite and it looks cool, IMHO.
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