https://journeyedwaynorth.wordpress.com/hydration-packs/hydration-packs-red/

　　Hydration PacksRed

　　Features

　　Moisture-wicking mesh and breathable foam throughout

　　Includes a special mesh attachment to hold a helmet

　　High-visibility reflective stripes to improve visibility when in fog days or at night

　　Featured with a water bag with isolation layer to keep the temperature inside the water bag

　　Dual External hydration sleeve ports

　　2-liter hydration system has a wide opening reservoir for easy filling and cleaning. ( reservoir not included)

　　Adjustable sternum strap helps stabilize the pack

　　Front zippered pocket holds bicycle tools, accessories or media player