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 Jacket Grab™ Slide off your jacket and strap it on your pack with ease. SP PRO's Jacket… Tuck-Away Waist Belt Traveling or don’t need? Simply tuck the waist belt into back panel notches of the… All-Terrain Wheels Tough outboard wheel system for reliable and smooth transportation through various ground conditions.