UA Storm technology repels water to protect your gear from the elements. Main compartment zips shut with custom puller . Soft-lined laptop sleeve—holds up to 15” MacBook Pro or similarly sized laptop . Additional sleeve inside front panel fits up to an iPhone 6. Adjustable pack straps are webbed & padded for total comfort. Unique 2-in-1 design gives you the option to either grab it by the straps & carry it like a tote or use the straps & wear it like a backpack. Dimensions: 17.75'' x 4.75" x 19.25" . Cubic Volume: 1,623 Cubic In. / 26.6 L .