Off the back and leading the pack—our premium mountain bike lumbar includes a 1.5-liter reservoir and features designed to keep you in the saddle. Dual hipbelt pockets on the Raptor 4 grant easy access to snacks, and a stretch mesh front pocket keeps kneepads, gloves or a light jacket handy. Side compression and a hip-wrapping backpanel stabilize the pack from techy climbs to the jump line.

Key Attributes

• Raptor 4 - Men's premium mountain bike hydration lumbar pack – Our flagship lumbar-style bike pack with included reservoir for minimalistic riders who prefer stable, off-the-back hydration carry.
• Ride stability – Bike-specific airmesh wrap hipbelt creates ultimate stability for the roughest rides.
• Trailside organization – Ride confidently and with peace of mind, benefiting from features like internal organization and intuitive hydration sleeve access.
• Reservoir included – Quick access to the Osprey Hydraulics™ LT 1.5 L reservoir keeps you hydrated for the miles ahead.
• bluesign® PRODUCT – This product meets bluesign® PRODUCT requirements, ensuring materials and components adhere to rigorous environmental and social criteria during production.

Features

• AirScape backpanel with contouring lumbar wrap provides maximum stability
• Separate compartment with a removable tool roll keeps tools accessible and organized
• Large zippered main compartment with reservoir sleeve
• Included Osprey Hydraulics 1.5 L Lumbar Reservoir with strong magnetic hipbelt bite valve attachment and left or right tube management option
• Secure routing for reservoir hose behind the hip pocket for extra security
• Internal goggle pocket and pocket with key clip
• LidLock bike helmet attachment
• Dual zippered hipbelt pockets
• Stretch mesh front pocket for small kneepads, gloves or light jacket
• Dual side compression for stability
• Blinker light attachment
• Reflective graphics for safety

Carry

• AirScape™ lumbar backpanel – Mesh-covered, 50% recycled EVA foam on an Atilon back panel framesheet allows dynamic body movement and maximum ventilation while keeping the load close to the body.
• Hipbelt – Spacer mesh hipbelt provides stability and breathability while the ErgoPull waist strap closure system allows for a proper, snug fit.

Fabric

• Main body fabric: bluesign® APPROVED, 100% recycled 210D dobby nylon, DWR treatment made without PFAS.
• Bottom fabric: bluesign® APPROVED, 100% recycled 420D nylon, DWR treatment made without PFAS.
• Main liner fabric: bluesign® APPROVED, 100% recycled 70D polyester, DWR treatment made without PFAS.