Central Compartment Store the big stuff. The Trekker Line includes a deep top loading central compartment for carrying ski pants, tops, base layers and gear. More Stories ID Panel Grab a Permanent Marker! All Kulkea bags include an ID panel to mark and make… Retractable Helmet Sling Outside Where it Should be. Save the storage space and ventilate your helmet. A stretchable sling… Lip Balm Pouch Mind the Chap! Conveniently located Shoulder strap pouch for easy balm access.