Piggy Back Compatibility September 4, 2017 Steven Abramowitz Innovations, Micro Pack, Powder Trekker, Thermal Trekker Carry them both with ease. The Micro Pack conveniently connects and Piggybacks on to KULKEA’s Trekker series bags via the helmet sling clips. (Thermal Trekker, Boot Trekker, Powder Trekker). More Stories Ski Goggle Protection Keep Goggles Safe. Soft material pouch or pocket designed specifically to store and protect goggles.… Pole Grabber™ Smart & Simple. Easy use internal strap system to secure and store poles separately from… Stash Pocket Stash your snacks, goodies and essentials in a water resistant zippered pocket.