Story *Kick back and sip in style The MiiR Aero Flask combines style and functionality in a sleek yet durable design. The ergonomic shape fits comfortably in your hand, while the wide-mouth, stay-open hatchback cap allows for easy refills without the worries of losing the cap or springing a leak. Features Stainless steel construction ensures your flask will last for years Durable matte black finish adds to sleek and clean look Ergonomic shape allows for a secure and comfortable grip Wide-mouth opening makes filling, emptying, and cleaning quick and easy Attached hatchback cap stays open for easy access and won’t ever get lost Materials Stainless steel Powder-coated exterior Care Handwash recommended Top rack dishwasher safe Wash before first use Do not freeze, microwave, bleach, or overfill Specs Dimensions: 5.73” H x 3.23” W Empty Weight: 0.4 lb Capacity: 8 oz. (236 mL) About MiiR MiiR is dedicated to making a difference in the world, and not just by making their customers' lives better. As a certified B Corporation, MiiR has passed rigorous requirements in social and environmental performance, accountability, and transparency. Each MiiR product comes with a unique code that will provide you with insight into the people and locale on which your purchase had an impact. Sales of their bags support education, sales of their bicycles support mobility and cycling programs, and sales of their hydration vessels help provide water to those in need. Not only that, but 5% of their top line annual revenue is donated to projects around the world focusing on water, education, and bicycles.