This Is NOT a Meal Management WOLFpak is more than a brand - it's a movement ignited by Michael a devoted body-building enthusiast and family man from Southern California. His vision transcends the typical athletic rucksack/backpack aiming to infuse functionality and inspiration for individuals facing any type of challenge. Why choose the WOLFpak tactical durable backpack? ● 35L traditional backpack ● 17in x 12in compartment ● Black “Trust Your Instincts” and“Be A Wolf” patches included ● Dual cup holders (shakers NOT included) ● Protective inside laptop/tablet pouch 10in x 10in ● Fits carry-on regulations for overhead compartment storage ● YKK Japanese upgraded two-way water-resistant zippers ● 180-degree opening for easy packing ● Waterproof surface - Oxford 1000D polyester ● Load-tested up to 35lbs Crafted from Waterproof Oxford 1000D Polyester this urban type tactical backpack is built to withstand any type of weather. The YKK Japanese upgraded two-way water-resistant zippers