SF3 Urban Gloves. The SF3 is an exceptional glove from every point of view. It is characterised by an exclusive look which combines traditional design features such as perforated leather with modern materials like a carbon knuckle shell and palm slider for highly effective protection. Sizing note: As the FIVE Glove range is based around European sizing we suggest you purchase ONE size bigger than you normally would. E.g. If you normally fit a size large then order an XL.