The 12 oz size is perfect for the youngsters, and for keeping that morning cup of joe piping hot.

The standard mouth bottle features a larger mouth opening. It is ideal for coffees, teas, mixing sport drinks, or just for those who need to take in more hydration, more quickly. As with all our bottles, they fit perfectly in most car, bicycle, and stroller cup holders and water bottles cages.

Mix it up this school year by sending your kid to the lunch room with something other than a plain bologna sandwich. The 12 oz Stainless Steel Food Flask is perfect for keeping kids lunches hot or cold for up to 3 hours.

The 17 oz Stainless Steel Food Flask is perfect for keeping your meal hot or cold for up to 3 hours. Whether you prefer to eat some warm chili after a long day of snowshoeing or a cold smoothie after some bikram yoga, the Food Flask is perfect for carrying a satisfying meal at the perfect temperature.

With the tremendous popularity of our "industry standard wide mouth," We have decided to add another new member to the Hydro Flask family; The 18oz Wide Mouth! All of the same great features you have come to expect from the wide mouth now in a compact, easy to carry size!

The narrow mouth bottle is our original mouth size. It is ideal for keeping your liquids chilled all day. Ice cubes from standard refrigerator ice dispensers fit perfectly through the narrow mouth.

The 21 oz is ideal for taking on the weekend bike ride or hike to keep your fluids cold. Or take it up the mountain and have coffee, hot cocoa, or soup waiting for you at the end of the day.

The standard mouth features a larger opening than our original narrow mouth bottle. It is ideal for coffees, teas, mixing sport drinks, or just for those who need to take in more hydration, more quickly. As with all our bottles, they fit perfectly in most car, bicycle, and stroller cup holders and water bottles cages.

The narrow mouth bottle is our original mouth size. It is ideal for keeping your liquids chilled all day. Ice cubes from standard refrigerator ice dispensers fit perfectly through the narrow mouth.

Drop the shorty and go with the 40! The Hydro Flask 40 oz Wide Mouth Stainless Steel Water Bottle is made for serious hydration and sustenance portability. Whether you're climbing a mountain with your favorite malt beverage or carrying soup to Grandma's house, the 40 oz water bottle is sure to fill you up! The wide mouth features our largest water bottle opening at 2.25 inches.

It's Here And It's Big! The New 64 oz Hydro Flask Growler! The Hydro Flask Growler is the ideal size for filling up with your beer of choice from the local brewery and then taking that IPA or Porter to trails. Or head up to the mountain with the growler and have some coffee, hot cocoa, or hot soup waiting for you and the crew at the end of the day. The Hydro Flask Growler is perfect for keeping your chili hot from the kitchen to the cook-off. The wide mouth growler features Hydro Flask's largest opening and is .375 inches wider than our standard mouth bottles.

While the Narrow Mouth bottles will hold a full size ice cube from your freezer door, the standard white trays may be a little tall. This is where these handy trays come in. Trays are stackable and dishwasher safe.

2 trays per pack
Makes 12 Ice "Stix" per tray

Our narrow mouth sports caps were designed with the mover and shaker in mind. The convenient pop top makes drinking on the go a piece of cake. We spent some serious time creating a sports top that fits your needs, the flow is great and the attachment loop makes it easy to clip your Hydro Flask to just about anything! The narrow mouth sports cap fits our 18oz. and 24oz. narrow mouth bottles.

Not Leak Proof.

Designed for everyday use at the pub, as well as the rigors of the outdoors, our Wide Mouth Flat Caps provide a leak proof seal which aides in keeping your Hydro Flask contents cold or hot. The Wide Mouth Flat Cap is insulated to help keep you liquids at the optimal temperature.

The Wide Mouth Cap fits our 40 oz and 64 oz water bottles.

Our Wide Mouth Caps are made from polypropylene, which means they are BPA-Free.

Our standard mouth sports caps were designed with the adventure seeker in mind, whether you’re traversing a crevasse, or forging white water, the standard mouth sports cap is up for the task. The convenient attachment loop makes it easy to clip your Hydro Flask to just about anything. This sports cap fits our 12oz and 21oz standard mouth bottle.

Not leak proof.

Newly designed for 2011, the new Narrow Mouth Loop Caps are now vented. This allows hot vapors to escape before and during closing the lid so as to allow them to close smoothly and cleanly.

Perfect for everyday use, as well as the rigors of the outdoors, our Loop Caps provide a leak proof seal which aides in keeping your Hydro Flask contents cold or hot. Clip to a backpack or messenger bag and take your bottle on the road.

Designed for everyday use, as well as the rigors of the outdoors, our Loop Caps provide a leak proof seal which aides in keeping your Hydro Flask contents cold or hot. Clip to a backpack or messenger bag and take your bottle on the road.