Can I add an item from Knixteen to my normal Knixwear cart while shopping? Carly December 09, 2017 11:40 Updated Follow You can! When you add an item from either site refresh the webpage to make sure the carts between sites merge. Related articles Can I wear a pad with my Knixteen? What’s the difference between Knixteen and Knixwear? What is the difference between the Athletic and Everyday undies? Can I buy Knixteen in a physical retailer? Where is your pop up shop? Comments 0 comments Article is closed for comments.