Product Feature: ‧ AGS Suspension System: a stainless steel rebound core that absorbs downward impact and creates upward rebound force. Protecting your muscle and spine. ‧ EVA Back Padding: an ergonomically designed back pad for premium protection and comfort ‧ Total 8 compartments – With 2 zippered water bottle slots – With 17.5″ laptop / 15″ tablet compartment – Backpack side zipper design for easy retrieval – Shoulder strap and back design: Tri-breathe shoulder straps and breathable padded back to make users more comfortable   Size: 35W x 50H x 18D cm Weight: 1.06kg *Product after expansion: 61cm(H) Design Concept: ZGMF-X10A FREEDOM GUNDAM