Sports is an inevitable part of our growing up, as we all have been involved with sports of one kind or the other at some point of our life. Not to talk about the professional sports persons whom sports is everything and the only way of earning all of money, respect and fame that a common man can only dream of.
Basically all the garments used for the purpose of practicing any sports activities are cotton or cotton mixed with other fabrics. Men-women-kids-boys-girls all alike use %LINK1% as their lower body sports-clothing, simply because of the undeniable comfort and flexibility, freedom of movement it allows. Many sportswear manufacturing giants provide a wide range of variety in the array of such pants and also sweat shirts. Pure cotton garments are the most preferred in both summer and winter days; nothing matches the comfort it provides and undoubtedly the performance of the one wearing it naturally increases.
So, if you want to go buy yourself or your child a pair of running shoes and also sportswear, so that you/he stays fit for LIFE, make sure you go for cotton garments viz. Sweat pants and sweat shirts since they will protect you/your kid from any harmful skin problems that might have developed had you used synthetic clothing.