More and more designers establishing men's lines and offering a variety of fits and cuts. Here are some helpful tips to keep in mind when navigating jean shopping:
Men's jeans are measured by waist size and inseam size. To find your proper size, measure your waist, and this will be the first number on the tag. Then measure your inseam and this will be the second number on the tag. (Ex. 34x34 or 35x32)
Men's styles tend to come in three common cuts: boot cut, straight leg and relaxed fit.
Boot Cut styles are typically slim throughout the thigh, narrows slightly at the knee then flares slightly at the leg opening.
Straight leg fit jeans will be slender and straight throughout the entire leg. This jean (besides skinny jeans) will be the most narrow.
Relaxed Fit jeans will be looser in both the thigh, knee and leg opening. This is typically the loosest style jean.
Cuts and styles to avoid: anything with a taper leg. These are not flattering on anyone! Unless you're going for a skinny jean look, avoid these! Anything that is too light in wash or has cheesy distressing. Stick to dark, even washes for the most flattering look.
One of the benefits of men's jeans is that they come in a variety of inseams. For length, the hem of the jeans should hit right at the edge of your shoe. They should not be longer, as not to drag or get caught under your shoe. If they're shorter, consider going up in inseam size.
If you're in between inseam sizes, consider having them tailored. Check out the hemming wiki for some helpful tailoring tips.
An increasing number of designers are now catering to men, offering a variety of styles and washes for men.
Some premium denim brands that carry men's jeans: Diesel, Joe's Jeans, True Religion, Paige Premium, J Brand, 7 For All Mankind and Citizens.