Swissgear Synergy Laptop Carrying Backpack for $35.99. Shipping is $7.99, which comes to a total of $43.98 shipped. This backpack supports laptops of sizes up to 15.4″. It has shock-absorbing shoulder straps, adjustable chest strap, dual handles and trolley strap. There is also a music player pocket. This backpack usually goes for about $59.