How brands are celebrating International Women’s Day 2021 Kyle Galvin for Mol & Stitch Marie Claire is supported by its audience. When you purchase through links on our site, we may earn commission on some of the items you choose to buy. The charitable initiatives and capsule collections giving back this IWD to support and empower young girls and women. Monday 8th March marks International Women’s Day. You’ll have likely heard friends discussing it or already spotted a charitable tee or two on your Instagram feed. International Women’s Day is always a significant date within team Marie Claire’s diary, as it provides such a great opportunity to champion the achievements of women around the world, as well as highlighting what desperately still needs to be done in the ongoing fight for women’s rights and equality for all women.