Huggressor Tumbler20oz Skinny Stainless Steel Tumbler with Straw. A sublimation tumbler is a stainless steel or tumbler made from another material that has been printed with a type of ink transfer called sublimation. Sublimation is a chemical process that takes a solid to a gaseous state, skipping the liquid phase. In sublimation printing, solid ink is embedded into a polyester substrate by heating it straight to a gas. The result is a high quality, permanent, and peel