Ideal for dynamic sports, the Agile 250 is super stretch so it stays comfortably in place even when you bounce or jump. The one size fits all Smart Adjustment makes it easy to select, and an expandable pocket on the front is super convenient. Stretch construction ensures stability while running. Lightweight and completely chaffe-free for comfort while running or skiing. Weight: 90. Pack weight (LB OZ)2.7 oz. Pack weight (G)74. Material: Mesh.