The sydney pro range not only looks good but also is easy to handle and versatile in use the padded adjustable shoulder straps chest strap with practical allows the backpack to transport on the body correctly and safely in addition it has a removable and adjustable length waist strap for added comfort the ingenious ventilation system with breathable mesh and integrated air flow channels ensures a pleasant climate at the backthe sydney pro daypack 450 is separated by a padded folding one