Oasis Bottle Standard Size Mouth Cap/Lid with Straw, All Black

I was leery of buying one of these, because the other brands didn't have good reviews. After much research, I decided to purchase this and give it a try. I used it all day yesterday and there were no leaks. I have the 21 oz Hydro Flask with the standard mouth size, which is perfect for my use. I can interchange this cap when I have cold beverages, and will use the standard cap it came with for hot beverages. I don't want the straw to melt when putting in hot liquids, so therefore I will switch it out. I plan on buying two more 21 oz. Hydro Flasks for my children, and will definitely order this product again. I'm very happy with my purchase!

Totally worthless! Bought this to use with my bottle on vacation - no time to check it out before I left. We arrived - filled the bottle with water - only sucked air through the straw. Took it apart and tried to reseat it - no improvement. Tried multiple times to get it to work - as did other members of my party - no luck at all. Never got anything more than air through the straw. Luckily I had the old cap and straw with me and was able to use that one (straw periodically falls off the cap which is why I was replacing it)

I was so excited to get this cap. When I received it, the straw/cap was defective, you could not suck up any liquid from the bottle. Also the straw appeared to be too short for my 24oz Hyddro Flax. I had a longer straw from a wide mouth and even tried that straw but it still didn't have any suction to get the liquid out of the bottle.

The first one I got worked perfectly and I loved it. Got a second and it was defective, so downgrading my rating.

I have to take top off to drink the last couple of inches water. Pain in the a**

Fits Hydro Flask great! Handle is smooth and easy to carry around. No leaks seen yet!

Love it! This has made drinking from my Hydroflask so much easier.

It is great to have on my bottle. You can leave it open and it never leaks.