Ultra-lightweight Justice™ Cordura® shell with 4-way stretch Breathable 3D mesh back panel for airflow under load 8-pocket layout including two zippered side compartments Two sweatproof flask compartments with 2×500ml HydraPak® flasks Adjustable shock cords and pole carry system for on-trail stability Emergency whistle and detachable care label to reduce skin friction Shell: 71% Cordura® Nylon, 29% Elastane Lining: 84% Nylon, 16% Elastane
