Fabric: 600D polyester, 450D x 300D heather polyester, 600D geo emboss polyester, 1200D polyester

Construction: 

• Bungee cords crisscrossing the front of the pack
• The FlexVent™ suspension system boasts custom injection-molded shoulder straps and a padded mesh back panel with a spine channel for maximum support and ventilation.
• Complies with Prop 65.