• Works With: 15.6″ Laptops and under , Convertible between an XL backpack and a roller
• Main compartment expands from 35L up to 40L
• Dedicated laptop compartment with SafePort® Sling Protection System
• Main compartment’s clamshell design allows for easy packing of your gear and personal belongings
• Conforms to most cabin regulations as an airline-approved carry-on
• Tuckaway ergonomic shoulder straps, Telescopic handle
• Smooth, quiet wheels with convenient covers for backpack-mode
• Top and side comfort handles, Soft-lined valuables pocket, Hidden water bottle pocket
• Made from 35 recycled water bottles
ขอบคุณข้อมูลจาก : https://ap.targus.com/products/15-6-mobile-tech-traveler-ecosmart%C2%AE-rolling-backpack-black?ref=isp_rel_prd&isp_ref_pos=1