Gregory Zulu 40L Daypack Ozone Black Small/Medium. Take your pick - the answer is both. Big enough for supplies for two on long sunup-to-sundown adventures this generously sized yet light and agile pack can even work for nights in the wild when the gear list is shorter than usual. You'll appreciate the dynamic fit of the Free Float suspension on the trail just as much as you'll love the U-zip panel access when you hit camp. Specifications for Gregory Zulu 40L Daypack: Manufacturer: Gregory Gender: Unisex Pack Volume: 40 liters Age Group: Adults Features of Gregory Zulu 40L Daypack Trail access side stretch mesh pocket (55L-65L / 53L-63L models) Front heavy duty stretch mesh stash pocket Bottom side compression with pass through for uninhibited use of the side mesh pocket Zippered top pocket with reflective webbing attachment loops for finding your pack at night Zippered bottom sleeping bag compartment with removable divider (55L-65L / 53L-63L models) Custom Comfort Grip molded zipper pulls Sternum strap buckle with integrated safety whistle Package Contents: Gregory Zulu 40L Daypack Gregory 111590-7416: Zulu 40L Daypack Ozone Black Medium/Large Gregory 111590-7411: Zulu 40L Daypack Empire Blue Medium/Large Gregory 111590-7413: Zulu 40L Daypack Fiery Red Medium/Large Gregory 111591-7411: Zulu 40L Daypack Empire Blue Small/Medium Gregory 111591-7416: Zulu 40L Daypack Ozone Black Small/Medium Gregory 111591-7416: Zulu 40L Daypack Ozone Black Small/Medium