After the successful launch of the GD1 Factory in 2017, Ergon have launched and entry-level GD1 using GravityControl Rubber.2 grip diameters: Standard for glove size Large/X-Large (8.5-10.5) & Slim for glove sizes Small/Medium (6.5-8.5)Carbon friendly CNC Aluminium clampsInterchangeable end plugs140g per pair (Standard)125g per pair (Slim)