While for the doubles, the court is made of 9 feet (2.7 meters) wider by making the base lines 4.5 feet (1.37 meters) longer in both directions. These added extensions on the sidelines are identified as alleys. Boundaries for doubles are identified as "doubles alleys". Alleys near the area of the court are required for players when reaching for swarming balls. When you are like Carrie Bradshaw of Sex and the City, you take any pair of shoes that you fancy off the rack, regardless whether it's expensive or killing the blood supply on your biggest toe, as long as it looks good on you. But when choosing tennis shoes, you have to consider some factors before parting with one from a store. By definition, tennis shoes are synonymous to running, sport, casual or gym shoes. Its modern names are sneakers, trainers or sandshoes. The very first sneakers were born in 1893. The materials that was used was canvas. It was made for boaters to eliminate the use of dress shoes on the deck. Well, this is just going to be a simple list of what to shop for, how and which. And since tennis is sports, the outfit that goes with it should serve its purpose. Modern-day tennis skirts have gone a long way from its predecessors. Most are brilliantly designed to fit the player's needs, style wants and comfort. They come in many fabrics and colors that women could choose from. Common fabrics are cotton (this is used due to its softness and breathability), nylon (this one is used because of its durability) and spandex (due to its elasticity). Also, the ATP Tennis site was able to attract almost two million users as tennis fans were able to register almost ten million impression pages. These numbers basically represent a thirty seven percent to forty percent increase in users compared to last year s number. The Spanish language site of ATP Tennis was also able to record a significant increase for this year, with the impressions increasing up to fifty percent. This cyber shop does not only provide you with almost everything you need for your game, but also offers free tips and advice regarding tennis-related subjects, such as stringing your racquet. Furthermore, Tennis Warehouse does not only sell goods in the US, but also in many parts of the world. Wherever you may be in the world, you know that Tennis Warehouse will almost always be willing to serve you.