The glengarry bonnet is a traditional Scots cap made of thick-milled woollen material, decorated with a toorie on top, frequently a rosette cockade on the left side, and with ribbons hanging down behind. It is normally worn as part of Scottish military or civilian Highland dress, either formal or informal, as an alternative to the Balmoral bonnet or tam o' shanter. The Royal Regiment of Scotland wears the glengarry with diced band and black cock feathers as its ceremonial headdress.