The NA9157 Nils Extreme is a roller skate for advanced recreational skaters. Its appealing appearance is not only the result of an interesting design, but above all of very high-quality materials that guarantee an extremely high level of comfort. This makes riding extremely comfortable. In addition, it has a breathable membrane and is ventilated. Stable construction The inline skate is very light thanks to the aluminium carriage and the shoe base, which is made of high-quality PP. In addition, the soft wheels guarantee a good grip on the ground and absorb all vibrations well, and the ABEC9 class bearings ensure a high grip quality. ensures a secure grip even at relatively high speed Specification: Roller sled: Aluminium Bearing: ABEC 9 CHROME Shoe: semi-soft Wheels: PU 84 mm / 82 A Material: high density foam 10 mm MESHVELVET mesh EVA material Insole length: 265 mm Closure: two-piece buckle, Velcro closure, boulder closure with brake.