Osprey Seral 4 Hydration Pack - Black

Osprey Seral 4 Hydration Pack - Black: Low-Profile Lumbar Hydration with 4L Storage

Experience hydration freedom without shoulder pack bulk. The Osprey Seral 4 in stealth black delivers bike-specific lumbar hydration with intelligent storage for riders who demand performance from an alternative carry position.

Key Benefits:

• Lumbar Hydration Innovation: Included 1.5L Hydraulics lumbar reservoir with high-strength magnetic coupling ensures effortless hose management through technical terrain
• 4L Intelligent Storage: Spacious main compartment with internal tool organization accommodates spare tube, CO2, multi-tool, snacks, and ride essentials
• Bike-Specific Stability: Angled hipbelt design with compression straps and ErgoPull closure system provides rock-solid stability during aggressive riding
• AirScape Lumbar Technology: Extra-thick ridged foam backpanel with center air channel delivers maximum ventilation and lumbar support
• Dual Hip Pockets: Zippered airmesh hipbelt pockets offer quick-access storage for energy gels, keys, or phone without interrupting your ride
• Magnetic Bite Valve System: Secure magnetic attachment keeps hydration hose positioned perfectly for one-handed operation
• Sustainable Construction: 100% recycled bluesign-approved materials with PFAS-free DWR coating and eco-conscious engineering

Perfect for Shoulder-Free Hydration The Seral 4 represents Osprey's innovative approach to cycling hydration, positioning weight at your hips instead of shoulders for unrestricted upper body movement. Ideal for mountain bikers, gravel riders, and cyclists who prefer lumbar carry or suffer from shoulder sensitivity. This camping gear transcends traditional pack limitations with bike-specific design that maintains stability through the roughest terrain.

Technical Specifications:

• Capacity: 4L total storage (244 cubic inches) with dedicated reservoir compartment
• Hydration: 1.5L Hydraulics lumbar reservoir by Hydrapak included
• Weight: 370g (0.82 lbs) - ultra-lightweight for lumbar carry system
• Dimensions: 19cm H x 32cm W x 11.5cm D (7.5" x 12.5" x 4.5")
• Materials: 100% recycled 600D PET polyester main with 400D high-tenacity nylon bottom
• Construction: bluesign-approved materials with PFAS-free DWR treatments
• Hipbelt: Airmesh wrap construction with dual zippered pockets and ergonomic padding
• Closure: ErgoPull cross-body waist strap system with secure lumbar positioning
• Features: Magnetic bite valve attachment, blinker light loop, reflective graphics
• Organization: Main compartment tool slots, internal zippered pocket, reservoir sleeve

Perfect For: Mountain biking, cycling training where shoulder packs cause discomfort, gravel adventures, trail riding, bike park sessions, riders with shoulder injuries, anyone preferring lumbar carry positioning

Ready to revolutionize your ride hydration? The Osprey Seral 4 in Black combines innovative lumbar positioning with professional-grade hydration technology and intelligent storage. Free shipping across South Africa included.