The Session 8L bike hydration pack is a minimalist, yet full-featured pack combining the cooling comfort of a breathable back panel with airy shoulder straps. This narrow, lightweight pack features a 2-liter vertical hydration reservoir with a bite valve. The pack offers plenty of storage including an organized front pocket, a fleece-lined sunglass pocket, additional side pockets plus external attachment straps. The Session is a do-it-all bike pack to keep you out all day on the trails.