SHIMA Bullet Men, Retro Vintage Classic Vented Summer Motorcycle Gloves (S-4XL) (4XL, Black) SHIMA 2-Year Warranty PERFORATED LEATHER: Providing additional airflow the perforated leather panels holes are designed for optimal protection and ventilation performance. AIR FLOW: Additional airflow technology. Perfect for summer. REINFORCEMENT PANELS: Reinforcement panels placed on palm and/or side hand provide additional abrasion resistance and improving overall protection performance. PORONXRDTM IMPACT ABSORBERS: Imagine that up to 90% of impact force never reach your body. Sounds good, right? That's because of high performing foams that rapidly hardens under the impact making kind of "forcefield". On the other hand on molecule level material is able to re-distribute the impact force in many directions so the impact that gets out is dissipated on much larger area. <span class="a-text-bold">PERFORATED LEATHER: </span> providing additional airflow the perforated leather panels holes are designed for optimal protection and ventilation performance. <span class="a-text-bold">AIR FLOW: </span>additional airflow technology. <span class="a-text-bold">PRE-CURVED FINGERS: </span>a pre-curved fingers glove means that the finger area is manufactured in a way that the glove&#039;s neutral position is always almost like a closed fist. This way it closes &amp; works better on the shifter. <span class="a-text-bold">HARD FINGER PROTECTORS:</span> hard fingers protectors provide additional protection in case of slide and impact. <span class="a-text-bold">HARD MAIN KNUCKLE PROTECTOR: </span>hard fingers protectors provide additional protection in case of slide and impact. <span class="a-text-bold">REINFORCEMENT PANELS:</span> reinforcement panels placed on palmand/or side hand provide additional abrasion resistance and improving overall protection performance.