Straight Skinny Tumblers: The sublimation tumblers 20 oz，with straight skinny body，are sublimation-transfered simply and easily；and the flat edge of bottom ensures that the sublimation image will not be distorted. 
Materials and Structure: The sublimation tumblers are made of 18/8 304 food-grade stainless steel, which can be used with confidence. The double - wall vacuum structure enables the beverage to keep hot or cold for several hours.