Men's Baltoro 65 Backpack Navy Blue. Make your hiking experience memorable with the Gregory Baltoro 65 backpack. With its durable make and multiple storage pockets, this medium backpack is a must-have check on hiking trips. Its removable, adjustable straps make it comfortable to carry this hiking backpack for hours while trekking. This men's travel backpack features a top-loading design with a U-zip panel for easy loading and unloading. The side pocket with a mesh drawstring closure of this hydration compatible backpack holds your water bottle.