What Our Gearhead(R) Experts Are Saying:"This pack is a game-changer for young mountain bikers who want a lightweight, comfortable way to carry water and gear. The Session 6L Bike Hydration Backpack is sized just right, with a breathable back panel that keeps air flowing and enough space for snacks, tools, and an extra layer. The 2L Hydrapak reservoir keeps hydration easy, and the sternum strap with a built-in whistle adds a little extra peace of mind when riding in the woods."For young riders pushing their limits on the trail, the Session 6L Bike Hydration Backpack is a perfect companion. Designed specifically for youth, this lightweight yet feature-packed pack provides easy hydration with a 2L Hydrapak reservoir and a Phaser bite valve for quick sips on the go. A breathable Air Flow back panel and ergonomic shoulder straps keep things cool, while the six-liter storage capacity ensures enough room for trail essentials like snacks, tools, and a spare layer. The fleece-lined pocket protects sunglasses or a phone, and external attachment straps offer extra carrying options. With a secure fit, durable construction, and a safety whistle built into the sternum strap, this pack is ready for every adventure, from backyard trails to all-day excursions.