A good pair of motocross goggles is something that anyone who is riding a dirt bike should have and this is true whether you're just trail riding, toolin' around on a motocross track or hucking some gnarly gaps. Furthermore, a good, quality set of goggles becomes even more important if you're racing off-road disciplines such as GNCC's, enduro's or hare scrambles, beating down laps on the motocross tracks in a race or practice fashion or if you're gassing it off the ramps and dirt hits as eye protection is really something to take seriously.
Get this... Riding without goggles and only using something such as sunglasses is just asking for an eye injury as riding off road can easily cause an eye injury due to an unseen branch or from flying, mud, rocks or roost that can easily get past a pair of glasses not to mention their inadequacy when it comes to smaller airborne particles such as dust and small rocks etc that the front wheel is known for kicking up.
When Shopping for Motocross Goggles... It's important to not only ensure that you are looking at a model that has colors and style that matches the rest of your gear, you also want to review the features of each goggle and at a minimum, ensure that the model you are looking at has features such as:
Along with a fresh pair of motocross goggles, you'll also want to get hooked up with a few of the more common goggle accessories that come in handy on a regular basis, as climate and riding conditions seem to always change from one track or riding area to another so a darkened or clear lens may be needed from one day to the next and tear offs are also a smart choice as a face full of roost will frequently block your vision and is when a tear off can provide a new and fresh field of vision in an instant.
When using tear offs... It's best to stack these in the way that the accompanying instructions show, although a tip to keep in mind which I have learned through years of tear-off use is that using more than about 5 or 7 tear-offs on a set of goggles usually results in a clouded field of vision due to the multiple layers over the lens. This clouding is not really avoidable when using a large number of tear offs on a set of goggles so if it's a wet and sloppy race, as off-road races such as GNCC's and hare scrambles or enduro's can become, it's best to have more than one set of goggles loaded with tear offs whereas you can pull over mid race such as during a fuel stop and swap goggles with your pit crew, otherwise your field of vision will be clouded and is not the best or safest way to be riding.