Ski Emergency Whistle September 4, 2017 Steven Abramowitz Innovations, Micro Pack, The Extras Let them know where you are. Perfectly located on the Sternum Strap buckle for hands free access. More Stories Open Pack Design™ Optimal storage, easy access. Kulkea’s Speed Line is designed around a jumbo wide-mouthed main pocket… Central Compartment Store the big stuff. The Trekker Line includes a deep top loading central compartment for… Isolated Compression No zipper interference. Low profile, always-engaged compression straps for size adjustment and additional load control.