Domains
Having your own domain for your t-shirt company can really help in branding and increases consumer confidence. Here are a few places to get domain for your clothing brand. Domains are really cheap at about $7-15 a year so it is a no-brainer.
NameCheap
Great option for getting domains at an economical price. They also give you free privacy protection which can add up with other services.
Godaddy
They are a large company and one of the most popular but not necessarily the cheapest.
Hosting
Below are a few options for hosting your own website for selling t-shirts or other custom merchandise. If you use e-commerce sites like Shopify or Storenvy which are hosted on by them you won't need to get hosting for your t-shirt brand.
Blue Host
A popular choice for hosting and domain names.
Specials: Free Domain With $6.95 Hosting Package
Hostgator
Another choice for hosting and domain names.
1&1
Globally a popular company, haven't tried them before.