Dakine Session Hydration Pack – 8L Grif/Tree Womens. A sturdy staple the Womens Session 8L is a lightweight compact hydration pack with dedicated storage for trail essentials. An updated recycled poly outer is rugged and sustainable and the womens specific fit of this lightweight pack ensures minimal shifting and evenly distributed weight while the breathable air flow back panel and shoulder straps keep you cool on the trail by minimizing hot spots. The Womens Session stores two liters of vertical hydration features a dedicated fleece-lined pocket for sunglasses internal organizer pockets and an integrated rescue whistle on the sternum strap.