Transparent Inner Pockets See it, grab it & go! The Trekker Line and Speed Pack include transparent inner pockets along the inside of the main pocket for keeping track of sunscreen, lip balm, snacks, tools, waxes and other small items. BTPTSPPSPRXLTT More Stories Open Pack Design™ Optimal storage, easy access. Kulkea’s Speed Line is designed around a jumbo wide-mouthed main pocket… Pack Release Stop Fighting Shoulder Straps! Easily dislodge the Boot Trekker, Thermal Trekker, Powder Trekker, Micro Pack or… Isolated Compression No zipper interference. Low profile, always-engaged compression straps for size adjustment and additional load control.