Cozy up to NEW Fall Colors
Sage, Rusty Red, Clementine, Cobalt, and Lavender. Available in Water Bottles and Tumblers. Get yours while supplies last!
Co Pilots are Back!
Co-Pilots are back in stock! Durability, leak-proof design, and extra lids make them the perfect hydration companion. Get yours while supplies last
Join Our Loyalty Program
Become a loyalty member and start earning Iron points to redeem rewards and save $$ on your Iron Flask favs.
18/8 STAINLESS STEEL
Durable and reliable. No flavor transfer and temperature retention are a few of the key benefits our bottles offer.
24/12 HOT + COLD
Icy beverages stay nice and cool for up to 24 hours. Hot beverages preserve their temperature for up to 12 hours.
POWDER-COATED
Easy to hold and to love. Our powder coat gives our bottles a beautiful look and an easy grip for your hands.
LIFETIME WARRANTY
All our products come with a lifetime warranty against manufacturing defects. Registration takes a minute, and the benefits last a lifetime.
Iron Flask Stories
The Ocean Thanks You
The Goodness of Your Vacuum Insulated Stainless Steel Water Bottle If you are the proud owner of an Iron Flask, thank you and congratulations, you are hydrating in style. Consid...
Does Water Help Build Muscle?
Does Water Help Build Muscle? Staying hydrated is closely connected to making your muscles bigger, stronger, and more toned. Besides helping your joints move smoothly and keepin...
How to Prevent Altitude Sickness This Season
Headed to the mountains this winter? Learn how to prevent one of the most common obstacles of high altitudes.
2022 Iron Flask Gift Guide
Still need to mark a few names off your list? We’ve got the perfect gift ideas.