Artek's Siena Oven Mitt happily displays the 1954 Alvar Aalto 'Siena' print in several bi-color offerings. Features a polyester filling to protect from heat and wear. Intended as a pattern for fabrics, Aalto wanted to see the Siena print used freely for different purposes. And Artek has done just that. The architectural and light Siena pattern was the first introduction in Artek's 2013 'ABC Collection' - a series of small objects intended to naturally complement the Artek furniture collection.