Lowe Alpine Cerro Torre 65:85 Backpack Removable 6L hydration pack for day trips Lightweight TriShield GRID fabric ensuring maximum strength-to-weight ratio Load-lifting handle <span class="a-text-bold">Harness:</span> Re-engineered for complete comfort.The harness uses mesh on inner edges and a wrap-around design. Lowe Alpines&#039;smost comfortable harness to date. <span class="a-text-bold">Adjustable:</span> Quick and easy back length adjustment, ensuring a perfect fit.A correctly fitted backpack reduces fatigue and discomfort when carrying heavy loads. <span class="a-text-bold">Ventilated &amp; Breathable Back:</span> Increased ventilation across all models increases breathability without compromising support and stability. <span class="a-text-bold">Rebound Foam:</span> Additional lumbar support from high-spec, rebound foam is highly supportive when carrying heavier loads. <span class="a-text-bold">Rotating Hipbelt:</span>Lowe Alpine&#039;swell-balanced, ergonomically designed and user tested rotating hipbelt helps relieve pressure and increases comfort.