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This is claimed to reduce the likelihood of concussion in a glancing impact

The trick is, there's the regular end of the bag that you seal by squeezing together the two flaps (just like Ziploc), but the opposite end of the bag is lined by a series of one-way valves that let air out

The trekking pole system works while walking

Extras / Accessories The fenders that come with the Aventure are metal and feel very high quality

Designed for all types of dropbar riders, it gets classic MET angular road looks, plus a flexible removable visor that just snaps in & out of the front vents for those days when gravel rides need some micro-sun shading