Ultraspire Surge Race Vest (2013) Dual side compression with Compressi-flex for stable load without restricting movement. Quick access hydration compartment Stretch mesh energy gel pocket. Patent pending Magnon Electrolyte Pocket with easy worry- free magnet closure. Light weight zippers pulls easily grabbed even with gloves, cold or numb fingers Left mesh pocket over zippered inner pocket for securely stowing night time accessories, energy foods and other necessary gear. Large hole microfiber mesh for ultra breathability Contoured shape profile for comfortable stable ride. Stretch mesh quick stash for easy access. Top zippered pocket for headlamp, cell phone or other supplies 2 L hydration reservoir included. Weight: 290 g (430 g with reservoir)