I haven't heard of any running tights suitable for men. I do know that there are leggings that are for men. Nike, Addidas, Reebok, Fila and there are many others.
You could search on Nike and other running sites on the web, or you could check eBay and Amazon. I bought my mens running tights on Amazon for an amzing price.
Adidas has running tights for men and they do play a role in the fitness of the men. They make the aero dynamic factor play a role in running fast in a race.
You can find mens tights for running at sport authority. They are the leader in mens sportswear and will definitely be able to accommodate all of your needs.
You can buy running tights for men at your local sport retail stores or department stores. If you wish to purchase online, they can be bought via Amazon for instance.
You can get adidas running tights for men from nearly all sport shops. Like Jd, sports direct and more. The usually cost around 7 pounds give or take.
Under armor has many running tights to choose from for men. They are not that expensive and lasts a long time. Your boyfriend will be happy to have them.
The men's Adidas running tights are light and airy. This allows the air to flow through the mesh inserts. This will also allow the moisture to evaporate through the material.
You can buy running tights at any local sports store or even online. At places like Amazon you might be able to find a deal and buy them with free shipping.
Men in Tights
If your plan is to shop online, you can buy some mens running compression tights online from runningwarehouse.com. You could also go to your local mall and look around sports stores for a pair.
Amazon provides a variety of running tights for women that are of fine quality and decent reviews. You can find their best rated running tights chose which suit you.
Most of the major running shoe manufacturers: Nike, Brooks, Adidas, etc... carry their own line of running tights, but a number of other retailers carry them as well. REI, Sports Authority, Dick's Sporting Goods, Finish Line, and Footlocker all carry running tights made by the major brands (Nike, Underarmour, Adidas, etc...). Additionally, brands like Underarmour carry their own line of running tights on their websites.