There is nothing to expect from cheap sunglasses other than poor quality. Low standards are not a problem with reputed brand names because their best sunglasses represent a continuation of tradition and the preservation of good reputation. What people don't know is that cheap eyewear could cause a lot of damage to the eyes. The pupil dilates because of the dark lenses, if there are no anti-UV protective features, then the ultraviolets and the infrareds become very dangerous for the eye. Sight impairment, crystalline dysfunctions and cataract could be among the severest consequences of the exposure to radiations.
Another reason why you should always try to buy the best sunglasses possible is image distortion. This is often caused by plastic lenses that have faulty dioptric values which have not been established by medical prescription. A further criterion to appreciate the quality of the best sunglasses is by comfort and face match. If you try more pairs on, you'll see that there is a big difference between matching and not-matching glasses, as they have to fit well on the face. Then, besides UV protection, the best sunglasses also reduce the glare by the anti-polarizing coating that covers the lenses.
Can lens color influence a classification of the best sunglasses? Well, there are different opinions here. The capacity to absorb the colors of the visible spectrum and the reduction of the light intensity vary depending on the color. Not anyone can wear dark lenses for instance because they can reduce visibility: this is the reason why drivers, pilots and many other wearers prefer gray. Green lenses have the highest efficiency in absorbing IR and UV radiation but they make certain colors hard to distinguish. Greenaffects the perception of blue, red, orange and violet. For tropical locations, green lenses make the best sunglasses, plus, this color has a very relaxing effect too.
Warm and cold environments are perfect for both cold and warm environments as well, and they have a good capacity to absorb radiations. Yellow lenses on the other hand are not useful against intense brightness but are great for foggy weather or driving at sunset. Protection and comfort, these is what the best sunglasses should provide. Wraparounds are among the most advanced of items because they protect the sides of the eyes too against the impact of the ultraviolets. Consequently, the properties of the lenses and the eye protection should justify a high price, and not fanciful frames.
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You've decided to take up the exciting and challenging sport of mountain biking. Unlike casual biking, you need much more than just a helmet to ensure that you have a safe ride as you hit the trails.
Mountain biking is such a popular sport that there is now a vast range of accessories for both men and women. Make sure you do a bit of research on each item you want to purchase to make sure you buy the best quality for the amount of money you want to spend.
Bike helmet
We may be listing the bike helmet as an 'accessory' but it really isn't. It is a necessary piece of equipment. In mountain biking, it is not a question of if you're going to fall, it's a question of when. And when you take a header over your handlebars, having a secure helmet on your head could well save your life. Although you can buy most accessories second hand if you so desire, the bike helmet is something that you want to buy brand-new, and make sure that it fits your head properly. And if you do have an accident in which any damage occurs to the helmet, the wisdom is that you should purchase another one. One accident per helmet - that's the rule.
Eye protection
Have you ever been riding on the road and been passed by a car that sends up a spurt of gravel at you? If any of that gets into your eyes, you have to stop immediately to clear your vision. If you're on a trail heading downhill at a breakneck pace, and a baleful bee takes that opportunity to hit you in the eye, the following seconds could end up being very uncomfortable. Glasses or sunglasses are one solution, but the best method is to wear goggles. Whatever you get, make sure that lenses are non-breakable.
Hydration system
It's common sense to bring a water bottle with you when you go out on a trail ride. It's very easy to get dehydrated which brings your energy right down. However, in order to drink from your water bottle you have to take your hand off one of the handles, and there are sometimes when you don't want to do that. A hydration backpack is a good solution. As a backpack you can put all kinds of necessary inside it, and when you need a drink you just reach over with your mouth to the bite valve and take a sip.
Mountain bike shorts
These days bike saddles are a lot more comfortable than they used to be. There are saddles made especially for women as well as men, and you can purchase gel-filled saddles that make the hours you spend on your bike a bit more comfortable. But you'll also want padded bike underwear and padded bike shorts, just for extra comfort.
Mountain bike gloves
If you fall off your bike (or should that be, when), your hands will probably be the first thing to hit the ground - either a paved road, a graveled road, dirt, mud, bushes...all sorts of hazards that can rip up your hands unless they're properly protected. Gloves serve another purpose as well, of course. If you're heading down the trail your hands will get sweaty which could cause problems keeping your hands on your bike grips. Wearing gloves eliminates that problem.
Mountain biking shoes
These days there's a shoe made for every sport under the sun, including that of mountain biking. The main difference in mountain bike shoes is the type of sole - designed for the different types of pedals out there: with clips or clipless. The clipless type of pedal requires that your shoes be fitted with special cleats. The shoes need to be durable and comfortable.
Trail repair kit
Regardless of what type of biking you do, it always makes sense to carry a bicycle repair kit with you. However, you can 'get away' with not carrying one if you ride on the streets of your city. You'll just be a phone call away from someone who can come and help you if you have a flat, after all. It's not that easy if you're out in the woods and your cell phone doesn't work. Always have a a multi-tool designed for bike repair, tire levers, and a patch kit for fixing flat tires. However, having a repair kit will do you little good if you don't know how to use the tools! So make sure that after you purchase your kit you familiarize with each of the tools and how to use them! It's easy once you know how.
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