YETI Custom 30 oz Tumblers with Magslider Lid, Navy Style Number:21070070035 88 12 poly spandex with durable water repellent Style Number:LF26Z28 88 12 poly spandex with durable water repellent (DWR) finish Grid microfleece lining for warmth 5000MM fabric waterproof rating 5000G M2 fabric breathability rating Heat transfer OGIO back neck label Molded center front zipper Drop shoulder Black reflective taping along shoulders and sleeves and down center back Zippered side pockets with a hidden mesh pocket for valuables or phone Black reflective O heat transfer on front left hem Drop tail hem Putting a modern twist on a classic design is the tumbler that gets you through the day this magnet slider is not leakproof and will not prevent spills