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KIPSTA
Machine-Stitched Football F100 Size 4
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Sale price: QAR 55.00 QAR 55.00
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We've designed this F100 ball for footballers discovering football with a club or who play occasionally.
Need a ball for your football club? With this F100 ball, go for a robust outer material that's ideal for your footballers' first steps in football.
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Product Features
Durability
TPU outer cover for good robustness.
Lasting air retention
Optimised bladder for good air retention.
Bounce
The ball meets international football standards in terms of bounce.
Additional Product informations
Composition
Bladder
- 10% Polyester
- 70% Dry Rubber
- 20% Latex Styrene Butadiene Rubber
Main part
- 70% Potassium Phosphate
- 30% Thermoplastic Polyurethane
The story behind this ball
It's important that young footballers use a ball that's the right size, no matter their age, which is why our design teams have developed the F100.Size 4 between 9 and 12 years.Size 5 for over 12 year olds.In addition, we have conducted numerous lab and field tests to guarantee the ball's ability to withstand every hit.
Too light? too heavy? the weight is standardised...
Between 410 and 450g (Size 5)Between 350 and 390g (Size 4)
How big is it? what's the circumference?
Between 68 and 70 cm (size 5).Between 63.5 and 66 cm (Size 4).
A "round" ball?
Average measured variation: maximum of 1.8%.We measure the football'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.
Maximum pressure loss test: here's what we do...
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.
We've also tested how much water the ball absorbs...
We simulate rainy playing conditions in a lab, leaving the ball to sit in 2 cm of water on a pivoting support whilst subjecting it to 250 compressions.At the end of the test, the ball must have absorbed no more than 15% of its weight.
It's all about the bounce
For size 5: Between 125 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 2 metres in height.For size 4: Between 115 and 155cm with a maximum difference of 10cm between the ball's highest and lowest bounce. Each ball is dropped 10 times on a steel plate from 2 metres in height.
Not even a scratch!
The most demanding test that this ball is subjected to is the machine shot test.The ball must resist up to 2500 shots against an inclined flat concrete slab at 50 km/h at a distance of 2.5 m.At the end of the test, we check:- the ball's general state: the stitching must withstand this test.- the circumference: it must not have increased by more than 1.5 cm.- the sphericity: it must not have varied by more than 1.8%.- the pressure: loss of pressure must not exceed 12.5%.
How about you? what do you think?
We value your feedback and use it to continuously improve our products.A huge thank you in advance for sharing your feedback with us.
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Product Reviews
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Very good product at affordable price.
Perfect for first ball
Yes it's good.
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Machine-Stitched Football F100 Size 4
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