The Laptop Sleeve Will Keep Your Device Safe The Pack Is Compatible With A Hydration System So You Can Stay Refreshed On The Move Zip Access To Main Compartment For Security Quick Access Zip Pocket Near Lid For Storage Two Mesh Bottle Pockets For Easy Access To Drink & Refill Sternum Buckle To Adjust For A Stable Carry Bicycle Light Clip For Adaptability Reflective Detailing For Improved Visibility & Safety In The Dark Airmesh Back Panel & Shoulder Straps For Breathability 100% Nylon Front & Base Panel 100% Polyester Side & Back Panel. Minimum Quantities Apply.