CamelBak Mule 3L Bike Hydration Pack, Black — 100 oz Crux Reservoir & Ventilated Air Director Back

The CamelBak M.U.L.E. 100oz (3L) hydration pack is a trail-tested mountain biking backpack that combines a high-capacity Crux reservoir with ventilated carry, 12 liters of organized storage, and durable, partially recycled materials.

Designed for technical singletrack and long rides, this M.U.L.E. updates a familiar silhouette with modern features: an improved 3-liter Crux reservoir with QuickLink connection, an Air Director back panel to promote airflow, and a ventilated harness with a removable stability belt for a secure, comfortable fit. The pack balances hydration performance with bike-specific organization—phone pocket, integrated tool roll, and external helmet carry—so you can stay focused on the trail without fumbling for essentials.

How does the hydration system improve on older bike packs?

The integrated 3-liter Crux reservoir delivers more water per sip and faster flow than many reservoirs, and the QuickLink coupling makes connecting or removing the bladder fast and mess-free. The reservoir's wide opening also makes filling and cleaning straightforward.

• 3 L (100 oz) Crux reservoir for extended rides
• QuickLink system for tool-free reservoir removal
• Wide-mouth opening for easy filling and cleaning

Will the pack stay stable during technical descents?

The M.U.L.E. pairs a ventilated harness with an adjustable sternum strap and a removable stability belt, giving you options to dial in a snug, wobble-free fit. The belt can be detached when you want a lighter, freer range of motion on shorter rides.

• Removable stability belt for extra lower-back support
• Adjustable sternum strap to secure the load on rough terrain
• Contoured harness for reduced bounce and improved control

How does this pack handle gear and electronics organization?

With 12 liters of total storage, the M.U.L.E. allocates space thoughtfully so essentials are quick to reach and protected. There’s a secure, padded phone pocket, an internal tool roll for multitools and tubes, and exterior attachments for a helmet or extra layers.

• 12 L total capacity for snacks, spare layers, and tools
• Padded secure phone pocket to keep electronics safe
• Integrated tool roll for organized repair essentials
• Exterior helmet carry and stretch pockets for quick access

What comfort and ventilation features keep riders cool?

The Air Director back panel channels airflow between your back and the pack to reduce sweating during intense climbs. Combined with a ventilated harness and breathable materials, the pack prioritizes airflow without sacrificing support.

• Air Director back panel for directed airflow and reduced heat buildup
• Ventilated harness that balances breathability and padding
• Lightweight construction to minimize rider fatigue on long rides

Who is this for? The CamelBak M.U.L.E. 100oz is aimed at mountain bikers who want a dependable hydration-first pack with room for tools, layers, and a phone—especially riders tackling technical singletrack, endurance loops, or shuttle runs. If you prioritize fast, high-volume hydration, stable carry, and durable construction for regular trail use, this pack fits that mission. Riders who need only minimal storage or who prefer a full-frame backpack with a different load profile might consider other CamelBak models, but for a balanced, trail-ready hydration pack, the M.U.L.E. remains a top choice.