I have been using a
I have been using a WYLD cup for years on the bike and it's become dingy, so I got a new one for me and one for my wife. Went with the same style because why change what works? Got the new ones. They seemed to be right. Added the bottle opener to the bottom, which I didn't need.
The bottle opener stores water when washing it, and all manner of shaking it out doesn't get it all. Nice little splashes in the face going down the road...
My old cup, filled with crushed ice and water at 10am, in Texas, during summer, on a 10-hour ride, with the cup sitting in the sun all day, would still have a few pieces of ice in it after multiple water refills (room temp bottles). This new one? Mid 780s outside on a 6-hour ride and the ice not only melted fully, but the water was warm.
So, the new ones don't work as well and annoy with that opener on the bottom.