This backpack does it all. It's water-repellent for the rain, tough as nails, comfortable as anything, and has all the pockets you need to hold all your stuff.
 
Water-resistant UA Storm technology keeps your stuff dry
Breathable, padded back panel & adjustable, HeatGear® shoulder straps for total comfort
Soft-lined laptop sleeve—holds up to 15" MacBook Pro® or similarly sized laptop
Water-repellent front valuables pocket
Large, expandable front laundry/shoe pocket at bottom of bag
Adjustable, removable UA Strap Clip™ on shoulder to prevent duffle bag from falling off when carrying both
Tough, abrasion-resistant bottom
2 side water bottle pockets
One Size Fits Most
Top grab handle
Dimensions When Full: 6.3"W x 20.1"H x 12.6"L