Review on Sleek Midnight Black Chug Lid - Universal Fit for Ascent & Hydro Flask Standard Mouth Bottles - Leak Proof, Double Wall Insulated by Joseph Katipally

For me it was almost perfect. The top seals well, hasn't leaked in the weeks I've had it and I trust it's sealed now. The swivel mechanism is ingenious, very convenient as you don't have to rotate it 360 degrees (but it's fixed even with a short stroke), and the hole is a nice size. My only complaint is that there is no way to attach it to the bottle once I've removed the cap to drink. That means I have to keep it or keep it in a place where it could get lost or stain the inside. It might ruin the aesthetic a bit, but if there was even a small plastic loop at the top, I could attach it to the larger grip loop on the main body with a rubber band or something. At least 4.5 stars as is. Edit: I'm changing this to 5 stars although it's closer to 4.7 stars as I still want that little loop to attach the top to the lid body :) It's holding up really well, still not leaking. I sit at my desk and take the cap off and just place it on the part of the body that keeps my drink dust free, but I can take the cap off without twisting it to drink.