Puma -
When I talk about buying trousers or joggers for my exercise the first place I like to be for purchasing it is Puma.com
It provied you with the best, soft and smooth trousers or shoes.
I bought my puma shoes about 2 months ago and I wear them daily for my joging exercise, it is the most flesible and comfortable one I can get.
The website has variety of every thing you want and is very easy and accessible.
It took about 7 days for my dilevery.
When it comes to trousers and shoes I only relay on puma.com