Camelbak Eddy + Vacuum Insulated Stainless Steel 0.6L

Keeps Water Cold For Ages, Sip Mouthpiece Issues – I needed something to take to work with as well as have on hand if going to the shops or gym. It's a great size and fits in my car's cupholder, and feels really nice to hold. The handle is a good size and it keeps liquids cold for ages - even after being in a hot car (though I don't recommend this). The bite/sip value is a great idea and it… Read more

works really well. I kind of love it. But it has one major issue which is when it comes time to clean it. Gunk and stuff builds up on in the inside, and you need a toothpick or similar tool to clean it properly. I'm always careful not to apply too much pressure as it may actually tear through the silicone. I'm also concerned that it's never truly clean.

I probably wouldn't buy it again if I lost it or it got damaged, but the one I have is really good overall.