The collar, actually called the "Shirt Collar Necklace," is intended to be an accessory for your clothing. It's part of the Utopia Accessories collection, which also includes clip on cuffs and ties.
Implications - As business women and men are spending more and more time at the office, convenience in dress is increasingly important. Certain parts of clothing are clip-on, showing how consumers need to get ready in a jiffy for their day at work. This trend also reflects the turn toward advertising men's clothing and targeting men as an important consumer category.