My wife has many different styles of sunglasses to wear outside for different occations.
I need to wear my sunglasses when I go to the beach.
Glasses that are darkened or tented for use in the sun are called "sunglasses".
"I need to wear my sunglasses when I go to the beach."
日の当たるところで使われる、暗くした[眼鏡](https://eikaiwa.dmm.com/uknow/questions/73902/)の事を "sunglasses"（サングラス）と言います。
【例文】
"I need to wear my sunglasses when I go to the beach."
（[ビーチ](https://eikaiwa.dmm.com/uknow/questions/65656/)に行く時はサングラスが必要です）
Sunglasses is the formal way of describing glasses that are used to protect the eyes from the sun. Shades is more of an imformal way of saying sunglasses because they provide "shade" to your eyes. Shades is used more often by younger adults and teenagers.
Sunglasses are useful for blocking sun. They are also effective at blocking uv rays which can be harmful. Sunglasses or shades as they are sometimes known are also an accessory
Shades is a common term for sunglasses.
"Don't forget to pack your shades in the suitcase."
Aviators is a well known style of sunglasses that is referred to by name.
"Do you like my new aviators?" (Remember Tom Cruise in Top Gun?)
"Shades"はサングラスを表す一般的な言葉です。
【例文】
"Don't forget to pack your shades in the suitcase."
（スーツケースにサングラスを入れるのを忘れないでね）
"Aviators"とは有名なサングラスのスタイルです。
【例文】
"Do you like my new aviators?"
（僕の新しいアビエイターどう？）
※トップガンのトム・クルーズを覚えていますか？
Sunglasses are tinted and are designed to protect a person's eyes from sunlight or ultra violet rays (UV Rays). The tint in sunglasses may vary in color. Apart from protecting a person's eyes from ultra violet rays, tinted sunglasses are also fashionable. For the fashion conscious people, they can choose a tint of their liking between smoke, amber, grey or green. Say you want to buy sunglasses since you are going on vacation, you may ask the shopkeeper as follows:
May I have amber tinted sunglasses please?
or
May I have green tinted sunglasses please?
or
May I have grey tinted sunglasses please?
サングラスは、薄い色がついていて、日光や紫外線から目を守るよう設計されています。サングラスの色合いは、色が異なります。紫外線から目を守ること以外に、色のついたサングラスは、おしゃれでもあります。
ファッションを意識した人たちにとって、青味がかった灰色、こはく色、グレー、緑色の間で好みの色合いを選ぶことができます。休暇を取るのでサングラスを買いたいと言うなら、下記の通り店員に聞けるでしょう。
例：
May I have amber tinted sunglasses please?
こはく色のサングラスを頂けますか？
May I have green tinted sunglasses please?
緑色のサングラスを頂けますか？
May I have grey tinted sunglasses please?
グレーのサングラスを頂けますか？
日本 
アメリカ合衆国 
イギリス 
南アフリカ 
