flip up bluetooth motorcycle helmets ILM Modular Helmet replaceable liners and air ventilation system. R3 Modular Full Face Helmet

Thanks to Jason Goldenshield for the Cranky Catfish rank correction.

Using water-resistant carbon fiber washers, even the smaller reels in our review dish out an amazing amount of drag

From: Chris: WI 3/24/16

The weight saving over the Atmos AG 65 is only 200 grams and this is still quite a heavy pack

Descend 1,600 feet into the earth to explore the longest continuously operated deep mine in the world, clamber across boulder fields unchanged since the last ice age, and visit a farm where Pennsylvania German traditions remain vibrant

Or, designers may decide to minimize the back panel to save weight, making it pull on your shoulders over time