Hydro Flask 18oz Wide Mouthsearch

Hydro Flask 18oz Wide Mouth

Hydro Flask 18oz Wide Mouth

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Insulated Stainless Steel Interior

The 18-ounce Hydro Flask Wide Mouth features double-wall, vacuum-insulated technology capable of keeping drinks cold for up to 24 hours or hot for up to 6 hours. Constructed from 18/8 stainless steel, the interior is non-porous to prevent bacterial buildup, unwanted odors, and lingering flavors. On the outside, the BPA-free Hydro Flask features a powder-coat finish. It’s compatible with most third-party water filters, as well as Hydro Flask’s Straw Lid accessory.

Note: At checkout, you will have your choice of color selection: Black Butte, Arctic White, or Everest Blue. Quantities are extremely limited in each color and the total drop size is 86 Hydro Flasks. 

Hydro Flask 18oz Wide Mouth

Screw Top

Looking for something completely water tight? Check out the Hydro Flask Screw Top version, which features a textured exterior for secure grip and precise interior for smooth threading. The burly loop keeps the lid securely attached to the bottle, and doubles as an attachment point for hanging the bottle on the outside of a backpack. 

Hydro Flask 18oz Wide Mouth
Hydro Flask 18oz Wide Mouth
Hydro Flask 18oz Wide Mouth


  • BPA-Free
  • 18/8 Stainless steel
  • Signature powder-coat finish
  • Height (with cap): 8.4 in (21.3 cm)
  • Flask diameter: 2.9 in (7.4 cm)
  • Weight (no cap): 9.3 oz (264 g)
  • Weight (with cap): 10.8 oz (306 g)


  • Lifetime warranty


All orders will be shipped by Massdrop.

Estimated ship date is Dec 18, 2015 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.

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