Fila NRK FUN Black/Yellow 2022 skates are skates with a shell. They provide adequate support, as well as an optimal amount of comfort. Easy-to-adjust fastening system. They guarantee excellent performance, safety and comfort. They will work great during city riding and slalom.Injection-molded shell, although very light, increases efficiency, stability and durability. The inner shoe, thanks to its soft and at the same time sporty cut, provides comfort and high technical standards. Shock absorber on the heel.Extreme Slider to protect the most exposed area of the shell. Die-cast low-profile chassis and 80mm wheels for increased agility and control.Outer boot:Injection molded shellClosure:Top buckle, 45-angle buckle + lacesRail:243mm aluminum frameWheels:FILA Urban 80mm/84A wheelsBearings:ABEC 7 for fast and smooth ridingFeatures Fila NRK FUN Black/Yellow 2022 city, urban, slalom skates:A skate for riding all kinds of distances, as well as tricks in the SkateparkDurable 84A wheels for good cushioning and speedwheels with a profile that allows for fast and stable ridingPrecision ABEC 7 bearings guarantee good rolling and durability.Lacing system - buckle at an angle 45 degrees, laced shoe, and upper buckle above the ankle make the foot in the shoe stable. This solution gives a sense of security, precise steering and proper control over the skatesThe use of technologically advanced construction, quite flexible shell allowed to obtain a small weight of the skate while leaving a large range of movement. Such a shell construction means that even the smallest movements of the foot are transferred immediately and with precision to the running gear.What is the ABEC standardABEC is a set of tolerance standards used in the production of ball bearings. Developed by the American Bearing Manufacturers Association (ABMA). The standard classifies bearings into five classes: 1, 3, 5, 7, 9 (the higher the number, the more precise the workmanship). Individual bearing parameters are achieved by segregating components, from balls, inner and outer rings, to the type of lubrication.Saying that ABEC 9 bearings are better than ABEC 5 would be a great simplification. For example, the ABEC 5 bearing was created with the use in a given type of roller skates (usually recreational skating) in mind, while ABEC 3 bearings are mainly offered in children's roller skates, while ABEC 5 is a proposal for skaters who value durability much more than speed. ABEC 7 is the perfect optimum between durability and relatively high speed. ABEC 9 bearings are almost the highest technological shelf, they are designed for the highest models and are usually chosen by people who value impeccable quality.Size converter:EURO size3737.53838.5394040.5414242.5Insert [cm]23.023.524.024.525.025.52626.527.027.5Additional materials: Manufacturer's WebsiteYouTube Channel Manufacturer's catalog