Sawyer Micro Squeeze. Let's see if it's better then my Mini (which is good enough for the weight tbh, but a faster flow rate wouldn't come amiss). Time will tell. I hadn't realised they've updated their bottle/pouch to a lighter material - so a bit of a bonus there. It also came with a spare washer (for where you screw in the bottle thread, and which I will have lost by the time I need to use it), and a 'coupling', the purpose of which has yet to reveal itself to me.