This rubber was the first market synthetic elastomer (1932) due to advantageous properties. It is very versatile and can be cured with sulfur or organic peroxides and has the following characteristics: good elasticity, allows perspiration, resistance to oil, solvents, weather ageing, heat, oxygen, ozone and flame [3].
group whose age range from 16 to 24 and this trend can noted across various sports. However, population in the age range 25 to 34 and 35 to 44 were also active particularly in swimming, using gym, running, cycling and tennis. Figure 2: Number of adults taking part in sports 2005/6 and 2013/14 (Source: Sportengland.org)