Product InformationULTRASPIRE REVOLT RACE VESTThe Revolt Race Vest is the most minimal, body-bare pack we offer. At a mere 7 ounces this pack allows for super cooling due to a very small footprint in the back, yet has a surprising capacity. The revolt includes our 550 UltraFlask Hybrid Bottle. The pack comes in new sizing, standard or long determined by both height of the runner and breadth of the shoulders. Capable of carrying 2 bottles in the back allow for farther distances between refueling and front pockets large enough to carry a large cell phone or any other essentials. Hydration for Active LivingThe journey of living an active lifestyle begins with desire, a compelling need to go beyond the last point of return...and then some...and more...and so on, and so on...In a world with the possibility of endless power and potential - You supply the Aspiration, we'll supply the products to keep the perspiration flowing.Key Benefits:Sweat proof webbing -- won't absorb water or get saturated and heavy.Silicone and PU coated feather-weight nylon fabrics resist water, abrasion and tears.Lightweight, soft, breathable, but strong, large-holed mesh pulls moisture away from the body to keep skin dry and cool.Quiet, bounce free, easy to see and use, zipper pulls.Features:Optimal center of gravity rear left or right side access holster for carrying a bottle and necessitiesOver-the-shoulder accessed expanding quick stash for gloves, sleeves, rain jacket or second bottleTwo front elasticized pockets hold gel flasks, multiple packets of gel or cell phoneProprietary large-holed mesh, made of soft microfiber polyester for comfort and breathabilitySoft and supple perimeter binding made with polyester to wick away moisture, and stay comfortable against bare skin