Materials:
We use high performance materials throughout the Extreme Series Backpacks. The outer material is PowerGrid™ Cordura® from Dupont Corporation.  This PowerGrid™ weave creates a material with extraordinary tear strength.  PowerGrid™ Cordura® is a double woven Cordura® grid in the Cordura® fabric.  Inside they are lined with our lightweight PowerGrid™ nylon and padded with thick closed-cell foam.  Our exclusive EasyGrip™ handles are extremely non-slip and very easy on your hands. Mesh accessory pockets are of a SuperTough™ coated mesh that will hold accessories in view yet be strong enough to deal with the roughest conditions.  Large YKK nylon coil zippers provide extra strength for additional insurance.

Features:
QuickClip™ Tripod Attachment System: Allows most professional tripods to be attached quickly yet carried safely, centered and balanced in the front of the pack.
Shoulder Strap Connections: Four "D" rings provide attachment points in vertical or horizontal mode for accessory shoulder straps (sold separately), providing convenient transport when not using the Tuck-A-Way™ backpack harness.
Double Handles: Handles on top and on one side of the packs provide easy and convenient handling.
Super-Contoured Backpack Harnesses: Contoured with thick padding to take the pain out of long, tough photo expeditions.
Mesh Front Pockets: Quick access to accessories and personal gear.
LockDown™ Rain Flaps: Provide an extremely weather-resistant barrier to protect the main compartment zipper from the elements.

Customization:
Attachments slots for all Tamrac Modular Accessory System™ products. These M.A.S.™ slots provide a quick-attachment system that will accept the padded backpack pockets, accessory pockets, Water Bottle in Carrier, Filter Belt Pack and more. 
Strap Accessory System™: Attachment slots on the backpacks' harnesses allow S.A.S.™ components such as our Memory & Battery Management Wallets to be attached and easily removed.