The Yeti Flask is a pocket-sized 207 ml (7 oz) stainless steel flask built from 18/8 kitchen-grade steel, delivering the same puncture-resistant and rust-resistant toughness as the broader Yeti drinkware range. A single-wall construction keeps the profile slim and pocketable, whilst a 100% leakproof closure ensures nothing escapes in transit. An included funnel simplifies filling, and the flask is 100% BPA-free throughout.DuraCoat colour coating on the exterior resists fading, peeling, and cracking so the flask holds its finish through years of use in the field. The flask is dishwasher safe for easy cleaning and is backed by a five-year warranty. Designed for cold beverages, it is the ideal compact companion for a day on the water, a hike, or any outing where a full-size vessel is too much to carry.Yeti Flask - Vacuum Insulated Flask 18/8 Stainless Steel - kitchen-grade, puncture-resistant, and rust-resistant single-wall construction Leakproof Design - 100% leakproof closure with an included funnel for easy filling DuraCoat Colour Coating - exterior finish that resists fading, peeling, and cracking Dishwasher Safe - BPA-free throughout with easy dishwasher cleaning