MJ Day

Joined: Feb 14, 2016

MJ Day is editor in chief of the Sports Illustrated Swimsuit franchise. Day, who has been with the brand since 1999 has led the charge in evolving the concept to reflect the times. Under her helm, for the past 10 years, the iconic issue has broken many barriers, led the conversation around industry change and has catapulted the careers of some of the industry's most well known stars.

Cameron Brink was photographed by Ben Horton at The Boca Raton.

SwimNews

Editor's Letter: SI Swimsuit 2025

Hotspot Destinations

Discover Paris's Sole Chateau Hotel, Just Steps from the Eiffel Tower and Arc de Triomphe

Gayle King was photographed by Yu Tsai in Mexico. Swimsuit by Magygel Coronel Necklace by Karine Sultan Earrings are from talent’s personal collection Bracelet by Karine Sultan.

SwimNews

SI Swimsuit 2024: Letter From the Editor

SwimNews

SI Swimsuit 2023: Letter From the Editor

Chelsea Hirschhorn founder of Frida Mom.

Frida Mom Founder Chelsea Hirschhorn Continues to Push the Envelope for Moms Everywhere

Hirschhorn discusses the very overlooked reality when it comes to postpartum care and how she plans to keep moving the brand forward for all women.

SwimNews

SI Swimsuit 2022: Letter from the Editor

SHOW MORE OF HER. Since 1964, every woman in charge of SI Swimsuit has heard this refrain over and over and over.

SwimNews

SI Swimsuit Is Building a Platform for All Women

We are a launchpad for success, a vehicle for change, and we are in the business of changing women’s lives. We’ve helped create media moguls, personal brands, actors, philanthropists, role models— you name it—and we are not stopping there.

SwimNews

Shattering Perceptions: It's Time to Rethink Everything You Thought You Knew about the SI Swimsuit Issue

There's beauty in diversity, in inspiration — and in rethinking all you thought you knew about the Swimsuit Issue.

SwimNews

Editor's Letter: Sports Illustrated Swimsuit Is More Than Just a Bikini Magazine

Sports Illustrated Swimsuit Editor MJ Day on how a bikini magazine became so much more.

SwimNews

SI Swimsuit 2017 Editor's Letter: 'Beauty does not conform to any set of stodgy standards'

MJ Day's SI Swimsuit 2017 Editor's Letter discusses body diversity in the fashion and beauty industries.

SwimNews

Editor's Letter: How we chose the 2016 SI Swimsuit covers

Every year, one Swimsuit decision trumps all others. What is our cover? What is the first thing people will see when they pick up the issue, the singular image