KNIT HAPPY-Stitch Happy Insulated Tumbler. Pick your favorite color color...or buy one of each! These 16 ounce tumblers feature an attractive durable acrylic outer and stainless steel interior with non-spill lid that will keep you beverage hot or cold for hours. Care: Hand wash, drip or towel dry (do not submerse in water). Available in a variety of colors: each sold separately. Imported.