Expandable Rucksack with Helmet Holder, 22ltr • Expandable design with integrated helmet holder. • Adjustable chest straps and removable, adjustable waist straps. • Anti-slip base for added stability. • Top-zipped sunglasses compartment for easy access. • Rain cover that converts into a helmet holder. • Two side bottle holders with liquid-draining system. • Padded shoulder straps and backrest for enhanced comfort.