Bola Sepak Hybrid Football Fifa Basic F550 size 5 White Black Red

8619212 8619213 The F550 hybrid has been approved by FIFA for your training sessions and matches. We #39;ve designed it to give the perfect balance between durability and feel Need a ball for your football club? This FIFA Basic F550 ball boasts a thicker outer material paired with a 24-panel design for better stability. Durability The panels #39; stitching is on the inside so that it won #39;t wear out as fast. Lasting air retention Guaranteed to retain its pressure for longer thanks to its butyl bladder. Stable flight 24 panels (instead of the traditional 32) with invisible seams. Bounce Your ball complies with international requirements in terms of bounce Ball touch Extra feel thanks to 1.4 mm polyurethane outer cover. Durability The panels #39; stitching is on the inside so that it won #39;t wear out as fast. The weight is standardised... This ball weighs between 410 g and 450 g (size 5) and complies with official FIFA standards. FIFA Basic approved. How big is it? What #39;s the circumference? This ball measures between 68.0 cm and 70.0 cm and complies with official FIFA standards. FIFA Basic approved. Here #39;s how we test sphericity: Average measured variation: 1.8% max (FIFA Basic certification). We measure the football #39;s sphericity at 4500 different points and then examine any differences. If the discrepancy is greater than 1.8 % (FIFA Basic Standard), our engineers are tasked with improving the sphericity to ensure a consistent bounce. Here #39;s how we test pressure loss: We inflate the ball to the recommended pressure (meaning 0.8 bar). 72 hours later, the ball must not have lost more than 15% of its pressure, meaning approx. 0.1 bar (FIFA Basic certification). The pressure after 72 hours must, therefore, be at approx. 0.7 bar. This also means that it is quite normal for a ball to lose pressure after a few days. Product Composition Outer shell 100% Polyurethane Bladder 70% Latex Natural Rubber, 30% Isobutylene Butyl Isoprene Rubber Inner fabric 100% Polyester