Christians are called to be "in the world, but not of the world." Hence, they are instructed to interact with the general population but find ways of setting themselves apart so that they can be true to their beliefs and positive examples to those who might want to follow in their footsteps. Wearing Christian clothing is a simple way to make a strong statement of faith, and because of this, shirts, jewelry and other articles of clothes that convey a Christian message are very popular.
It is easiest to find such items in specialty Christian shops and catalogs. However, they are becoming more mainstream, so you may be able to come across them in ordinary clothing and department stores. Ideally, wearing clothes that incorporate Christian symbolism, Bible verses or challenging questions will spark a conversation. Any time a person asks about a WWJD t-shirt or a necklace with a cross on it, that is an opportunity to share your faith and let that person know why you believe as you do.
Some Christian attire is subtle, while some is very overt. If your brand of evangelism is very aggressive, you may prefer something with a provocative statement, but many would rather have a cryptic shirt that invites queries or an uplifting message that offers comfort to those who are having a difficult day. Images of lighthouses are popular on Christian shirts, for instance, because they are comforting and demonstrate the idea of Jesus being a beacon of light in a dark world.
Wearing Christian clothing is a way for Christians to show everyone they encounter that they are serious about their relationship with Jesus. Those who are open about their faith in this way prove that they are not ashamed to be identified as followers of Christ. Like the fish symbol used in the early church, it also serves as a way for fellow Christians to identify each other.
Whether you wear a shirt with a favorite Bible verse emblazoned upon it or a bracelet that declares a Christian slogan, keeping a supply of Christian clothing helps you to share your faith and remind yourself of your own commitment to the cause. Every time you glance at your wrist or your shirt, you will remember what you stand for and feel renewed resolve as you try to share your ideals with the rest of the world, one conversation at a time.