Ski Emergency Whistle September 4, 2017 S Innovations, Micro Pack, The Extras Let them know where you are. Perfectly located on the Sternum Strap buckle for hands free access. More Stories Drainage Grommets & Vents Lose the water, air your gear. All Kulkea bags include strategically located ventilation grommets or closable… All-Terrain Wheels Tough outboard wheel system for reliable and smooth transportation through various ground conditions. Hydration Holster Holds two small water bottles or one larger refillable bottle.