The ever popular Swedish goggle has been a favorite among competitive elite swimmers for over 30 years. This goggle is self assembly to get just the right fit to enable you to shave off every hundredth of a second possible from your race time. Besides getting one regular lens and one mirror lens to adust for indoor or outdoor swimming, the other great thing about our 2-pack is that you are getting two for almost the price of one. Look and feel your best as you play, train or win in Speedo, the world's #1 swim brand and the choice of champions. Competitive consumers are the core of our brand. Swimmers want swimming to be an important part of their live, and they wear their swimming as a badge. Some will compete, others will do their daily laps. All will aspire for personal bests. Speedo equals better fit, performance, quality, and innovation. But we aren't just about race suits and competitive swimming. At Speedo, we are all about helping you get more out of the water: more fun, more fitness, more comfort? well, you get the idea. Which explains why more elite swimmers swim (and win) with us than any other brand on the planet. And if you're not living life in the competitive lanes, we've got you covered for all your fitness and recreation needs for the entire family.Item includes : ? 4 lenses ? 2 head-straps ? 2 strings ? 2 nose-bridge sheaths.Swedish goggles are a classic and popular type of swimming goggles worn by many competitive swimmers. They are the most popular goggle among elite swimmers. Swedish goggles are notable for a lack of a gasket or seal around the eye cup, as found on most other goggles. Much of the popularity of Swedish goggles is due to their customizable fit.Please Note: The goggles are sold un-assembled and require complete user assembly, which results in a custom fit. Proper assembly generally requires some skill and practice, as well as precision. Before assembly, the inside edges of the lenses are often filed down to remove any sharp edges and thus improve comfort. There is assembly instructions manual, which are included in the goggle packaging.