Arch Support generally refers to the part of the insole of the shoe that raises right at the level of the arch to provide support to the midfoot. Arch Support also refers to individual insole cups with a molded shape that fit the arch and are placed inside the shoe to help relieve foot or heel pain.
About Deck Shoes:
Deck Shoes are shoes designed for yachting and sailing activities. Deck Shoes have soft soles and heels to avoid marring or scratching a boat deck. Deck Shoes that have a two to three eyelet oxford constuction may also be commonly referred to as Boat Shoes.