8.5 inches tall, 3.5 inch diameter. Cinch close top, durable carabiner clip-attach to bag/bike/stroller/belt. Holds 20 oz. bottle, keep warm or cold. Barely used condition. Measurements are approximate. Because this item was previously worn/used/loved,   there may be minimal flaws that I missed at the time of listing. My closet has a variety of sizes, great accessories. Pick your favorites to BUNDLE. 💥Pay ONE shipping fee! 💥20% off TWO or more items! 💥Open to reasonable offers.