Sum is an armchair designed by Simon Legald for Normann Copenhagen that belongs to the Sum modular seating collection. It is a piece of furniture with a steel structure, upholstery available in fabric or leather, legs in aluminum or black aluminum and polyurethane foam padding. The Sum collection of modular systems represents the triumph of contemporary elegance. The refined, soft and familiar design meets the concept of modularity, making these furniture versatile and functional. Each piece becomes the protagonist of the space where it is in, defining and enriching it with infinite suggestions.