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本站网友 Dayana ip:61.139.126.*
2016-06-15 17:01:45 发表
I believe they add stiffness but I also think th17#&82ey;re for airflow. There is a good deal of perforation between the ridges. Airflow is a worthwhile goal. Most back protectors I’ve worn (and I sampled a lot for research) leave my back drenched when worn in combination with racing leathers. But I’m sure there are ways to accomplish the goal without the tradeoff.
 
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