I've been rocking these caps for a couple of years where they see moderate weekly use in every season. I add them to all my 1 liter bottles to add that little bit of security when traveling over backcountry talus, boulder and snow fields where a little white cap is easily dropped only to become unrecoverable or blown away to oblivion.
Despite the love I have for theses caps they can split at the top from heavy use and/or over tightening. Something I have never experienced with regular caps in 35+ years of backcountry travel and climbing. Because of this, I still carry a spare original 1 liter bottle cap.
T
The Old Guy
Just what I needed!
I use CNOC bags for my hydration needs but have Smart Water bottles in holsters on my pack shoulder harness's to hold two liter smart water bottles.
I realize I am different than a lot of folks but I do not like the sports bottle caps (the part that you have to pull up to gain access to the water), I like to take a full "gulp" of water without having to work for it. I have a tendency to drop the caps on the smart water bottles.
So, purchased these and replaced those caps. Now I can gulp away and not loose the cap!
