20 oz FAU Tradition Stainless Steel Tumbler Up to 24 hours cold and 8 hours hot Double-wall vacuum insulation and copper lined 18/8 stainless steel with leak resistant & easy-close lid Do not put tumbler in dishwasher, freezer or microwave Hand wash with soap (no bleach or chlorine) & water using a scratch-free sponge Limited 5-year guarantee Lid is dishwasher safe (top rack only)