The Maker 20 Oz Soft Matte Tumbler combines the sleek silhouette of our 20 ounce Skinny Steel with a straight body. Each tumbler is equipped with a twist on, slide lid with a matching straw. Easily transport hot and cold beverages to the office or around the home. Crafted with our high quality, food grade 18/8 stainless steel (304 stainless steel). This material is commonly found in professional kitchens; utilized for its non-porous nature for resistance against bacteria, mold and lingering odors. The 18% chromium and 8% nickel composition makes it less likely to rust or corrode.