This bottle looks awesome and the flexible titanium lining is cool tech. But the spout on the lid is very restrictive. It feels like it takes at least 5 times as much time to get the same volume of water out of this bottle compared Fidlock's other new bottles like the 590. Unfortunately this bottle uses different threading, so the lids cannot be swapped. Until a replacement lid is available, I won't be using these on my bike. It just takes too long to get enough water.