old navy women's satin cowl maxi dress reviews JDY - Neck - Women - Polyester - XS Make the most of momentous occasions by arriving in unmatched style with pieces like this sleek satin maxi Old Navy's $38 Dress Is

FAQs: Shirt Sizing and Measuring How do you measure collar size

MORE: Follow Wonderwall on MSN for more top news and photo galleries Charbonneau/BEI/Shutterstock 2 / 29 shutterstock_editorial_397833f It's one of the most iconic fashion moments of all time: Jennifer Lopez bared her bellybutton in a green tropical-print Versace dress with a plunging neckline during the 2000 Grammy Awards in Los Angeles

If you have a button down shirt, you could wear it all buttoned up one day

Also check out our DIY options for gaping blouses and note that if you just want a collar beneath a sweater, you can always go for a fake collar instead

Because of the A-line design and fitted high-neck top, one tester raved that this dress "accentuates my curves without exaggerating them." Testers liked that there were pockets, but noted that they were pretty small

Fabric has an effect on formality: luxury fabrics such as wool are often the most formal, then cottons, and then synthetics