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11 FOOTBALL BALLS

KIPSTA F900 FIFA Thermobonded Football Size 5 - White

KIPSTA

Colour : Snow white

Decathlon
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We created this ball for football players looking for precision and excellent ball feel. Our design teams created the F900 ball with a 12-panel outer cover to ensure perfect sphericity and greater precision.

Technical Information

Design

For this certified FIFA Pro football, our designers used thermobonding technology (seamless) to make it perfectly spherical and to guarantee complete precision during shots. In addition, this technology ensures better waterproofing while training in the rain. Finally, to optimise the sphericity of this ball, we chose a laminated bladder (fabric strip bonded to the latex bladder) to guarantee even more durable inflation.

Exclusive construction

We know that during matches, the details make the difference. For this F900 ball, we wanted to pay particular attention to the stability of the ball's trajectory to ensure players and goalkeepers had the best chance of following the ball through the air. To do this, we tested different types of outer panelling and chose the one which showed the best results. This 12-panel design combined with the embossed lines is exclusive to Kipsta.

FIFA Pro quality test

We have conducted numerous lab tests on the ball in order to provide the excellent accuracy that football players require while competing. Each test is outlined below.

Weight

Between 430 and 445g in size 5

Circumference

Between 68.5 and 69.5 cm.

Sphericity

Average measured variation: maximum 1.5%
We measure the ball's sphericity at 16 different points and assess the recorded discrepancies.
If the discrepancy is greater than 1.5% (FIFA PRO Standard), our engineers are tasked with improving the sphericity to ensure a consistent bounce.

Maximum pressure loss

We inflate the ball to the recommended pressure (meaning 0.8 bar).
72 hours later, the ball must not lose more than 15% of its pressure, meaning approx. 0.1 bar. 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.

Water absorption

We simulate rainy playing conditions in a lab by leaving the ball to sit in 2cm of water on a pivoting support whilst subjecting it to 250 compressions
At the end of the test, the ball can not have absorbed more than 10% of its weight, 40 grams for the F900. This is one of the advantages of the thermobonded process; water absorption is limited in comparison to other processes (machine-stitched for example)

Bounce

Between 135 and 155 cm with a maximum difference of 10 cm between the ball's highest and lowest bounce. Each ball is dropped 10 times on a steel plate from a height of 2 metres.The bounce obtained with the F900 ball complies with FIFA Pro requirements.

Shape and pressure retention

The most demanding test that this ball is subjected to is the machine shot test.
Withstands up to 2500 shots against an inclined concrete surface at 50 km/h from a distance of 2.5 m.
At the end of the test, we check:
- the ball's general state: stitching must withstand this test
- the circumference: it must not have increased by more than 1.5 cm
- the sphericity: must not have varied by more than 1.5%.
- the air pressure: the ball's loss of pressure must not exceed 0.1 bar

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Composition / advice

Composition
Outer shell
100.00% Polyurethane (PU)
Bladder
100.00% Rubber - Natural Rubber (NR) - Latex
Inner fabric
100.00% Polyester (PES)
Stock advice Do not completely deflate the ball as this risks damaging the panels' bonding and limits the ball's durability in the future.
Restricted use : Do not completely deflate or crush.

Our commitments

In line with FIFA PRO standards, the most rigorous standards for football designs.
Test Product Compliant with international football federations' most stringent standards.
Guarantee : 2 Years

Product benefits

Durability Laminated bladder combined with thermobonded construction.
Lasting air retention Guaranteed to keep ball pressure for longer thanks to Butyl / Latex bladder.
Precision Thermobonded ball with textured component for optimum accuracy.
Stability Stable trajectory thanks to its embossed 12-panel construction.
Bounce Optimum sphericity thanks to thermobonded construction.
ball touch 5 mm foam outer cover for optimum comfort
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