Abstract: A backpack shell construction having a stiff back panel supporting storage compartments projecting outwardly therefrom and carried on the user's back by a pair of shoulder straps and further secured to the user by a waist strap, to which shell a pair of tandem collapsible boot shelves or platforms are integrated at lower corner portions and an outer ski carrier and helmet mounting panel is hingedly attached to the front face of the backpack shell.

Abstract: A backpack combination comprising a storage compartment having a front wall, a rear wall, a bottom wall, first and second side walls, and a top wall; shoulder straps affixed to the rear wall at upper and lower portions thereof; a first and second zipper means extending along the periphery of the rear wall from lower to upper portions thereof; a padded back panel congruent with the rear wall and having third and fourth zipper means along peripheral portions thereof adapted for selective connection to the first and second zipper means; a trolley having a support panel congruent with the rear wall and having fifth and sixth zipper means along peripheral portions thereof adapted for selective connection to the first and second zipper means.