If you're considering starting a business, have you ever thought about getting into the t-shirt niche? Wondering why t-shirts are a great product to sell, whether online or offline? Well, here's the scoop: in 2022, the t-shirt market in the US alone was worth a whopping $43.47 million, and in China, it reached a staggering $568 million. What's even more impressive is that this market is growing by a healthy rate of 3.9 percent every year. Just take a look around, and you'll notice that nearly every online store, from Amazon and Aliexpress to Alibaba, eBay, Etsy, and Zazzle, is in on the t-shirt game. Almost all offline clothing stores are selling t-shirts.