All players are permitted to wear gloves, and goalkeepers usually wear specialist goalkeeping gloves. Prior to the 1970s, gloves were rarely worn, but it is now extremely unusual to see a goalkeeper without gloves. In Portugal's match against England in the Euro 2004 tournament, Ricardo drew much comment for deciding to remove his gloves during the penalty shoot-out. Since the 1980s significant advancements have been made in the design of gloves, which now feature protectors to prevent the fingers bending backwards, segmentation to allow greater flexibility, and palms made of materials designed to protect the hand and to enhance a player's grip. Gloves are available in a variety of different cuts, including "flat palm", "roll finger" and "negative", with variations in the stitching and fit. Goalkeepers sometimes also wear caps to prevent glare from the sun or floodlights affecting their performance. Players with sight problems may wear glasses as long as there is no risk of them falling off or breaking and thereby becoming dangerous. Most players affected choose to wear contact lenses, although Dutch player Edgar Davids, who is unable to wear contact lenses due to his glaucoma, is known for his distinctive wraparound goggles. Other items that may be dangerous to other players, such as jewellery, however, are not allowed. Players may also choose to wear headgear to protect themselves from head injury as long as it presents no risk to the safety of the wearer or any other player.