The Imperial One inline skates from Powerslide are the perfect skates consisting of a solid hard-shell construction. These skates are made for pure fun, whether you want to make action-packed jumps over obstacles or if you just want to enjoy skating. Sufficient ankle and foot support The Imperial One skate is comfortable to wear thanks to the MYFIT double soft inner padding and offers sufficient ankle and foot support. This allows you to enjoy hours of skating without problems. The two micro adjustable clip closures and lacing ensure that you are on your way quickly! Extremely comfortable The frame is made of aluminum and the medium ventilation provides a breathable hardboot. The upper part of the Imperial One skate is made of lightweight elastane and polyurethane. This improves the comfort of the inline skate. To further improve comfort, the hardboot has a fixed liner made of EVA. This helps give you excellent power transfer with every step. Powerslide-spinner wheels The wheels are one of the most important parts of your inline skates, they can drastically change your skating experience. With an 88A wheel hardness you will roll smoothly through the streets. The skates are equipped with Powerslide-spinner wheels, these are the best, most affordable, high quality freeskate wheels on the market. The polyurethane is everything you need - a fast and easy roll, great grip one and they have a long life. The Powerslide-spinner wheels are 80 mm in diameter. These impressive, lightweight Imperial One inline skates provide the perfect balance between speed and control on the road. ABEC 7 bearings ABEC is a rating system for tolerances in bearings. The higher the number on a scale of 1 to 11, in this case ABEC 7, the smaller the tolerance in the bearing. Having smaller tolerances means your bearing will spin faster and longer. So the bearings in this skate will provide a longer rolling time. General Specifications: Color: black, yellow Gender: unisex Type of shoe: hardboot Closure: laces, two micro adjustable clip closure Insole material: EVA insole Outsole material: glass fibre reinforced plastic (GFRP) - GRP Upper material: polyurethane, nylon Lining material: EVA padding Ventilation: medium Sizes: 39/40 Frame Specifications: Model Imperial One Frame name: Powerslide Gamma Adjustable from left to right: yes, 165 mm scale, 8 mm Frame material: ADC10 aluminum Frame wheelbase: 243 mm (9.6 inches) Wheel specifications: Model: Powerslide-spinner Wheel hardness: 88A Diameter wheels: 80 mm Wheel width: 24 mm Wheel material: polyurethane Wheel spacing: AL floating (UFO) spacer, 8 mm Wheel composition: HR (high rebound, cross comfort) Number of wheels: 4 Bearing Specifications: Brand: WCD Wicked Rating: ABEC 7 Standard norm: 608 standard Material bearings: carbon pro steel Lubrication bearings: light grease Specifications brakes: Brake available: no Compatible with: Urban Brake Size S