Osprey Seral 4 Hydration Pack - Black - 4L Pack - 1.5L Bladder PLP|Largest Cog Brake caliper compatibility: Compatible with

Brake caliper compatibility: Compatible with a range of brakes:

Stop/Flow valve

The only area where they suffer a little bit

float and support

Removes sweat and moisture while maintaining a consistent temperature

Osprey Seral 4 Hydration Pack - Black - 4L Pack - 1.5L Bladder PLP|Largest Cog Brake caliper compatibility: Compatible withIf you like to carry more gear than you can fit in your pockets but don't like that big sweaty hug feeling that a full pack gives you then the Osprey Seral Lumbar Bottle Pack may be just the thing you've been looking for. This pack includes a 1. 5L hydration reservoir and sits on your hips, leaving your shoulders free to breathe. Who's this item for: Riders that want to carry more gear than they can fit in their pockets but don't want to carry a big