OneCup is the perfect non-skid, bump-proof, colorful accessory for your Hydro Flask or Nalgene Bottles. The non-skid, bump-proof, colorful accessory fits most 32-40 ounce water bottles. (92mm or 3 3/38 inch diameter). Make your bottle better!
Use it to mix energy drinks, give Fido a sip of water, store snacks or just a convenient place to keep your keys or cash when you're on the move!
Made in the USA.
BPA and Latex free.