Choosing a well-made pair of trousers is like money in the bank. It will improve your equity!

Trousers made from natural fibers i.e. wool etc. last longer and require less dry cleaning. This is because natural fibers help the garment to breathe and allows evaporation of any perspiration. Blends such as poly/wool have similar benefits. 

When not wearing your trousers, hang them up as soon as possible. This helps them resist wrinkles. 

Trouser Length

The length of your trousers should break slightly on the front part of your shoe. The hem should be slanted on an angle and break where the heel and the sole meet. 

Regular and Long rise 

Trousers are usually sold in two different "rise" measurements, regular and long. The long rise is also referred to as "Tall sizes". The rise is the length from the crotch to the waist. This allows the waist band to reach the navel. A man 6" or taller would probably prefer a long rise for a more comfortable fit.

Kinds of Trousers

a)Dress Trousers

Formal trousers are something whose charm will never wear off. What with conventional dogtooth checked trousers, elegant pockets and flat fronts. 
 

b) Casual Pants

Khakis, the type whose colors don't fade even after many washings, make a perfect bridge between dress pants and casual. Then there are Chinos, the flat-fronted trouser with no pleats and pockets which add elegance to the young adventurous spirit, from Chicago to Cairo to Calcutta.