Arian Foster, the undrafted running back who rushed for the most NFL Opening Day yardage in 37 years, is the latest Texans player to be celebrated with a fan jersey from sports-apparel giant Reebok.

And thanks to online sports retailers Fanatics and FansEdge, you can get the newest Texans postseason gear like shirts, hoodies and hats to show support for your favorite team. Not only do the ...