Popsugar Living Best Of 2020 The Best Halloween Costume Ideas For 2020 We Have Chills! These Are 2020's Coolest Halloween Costume Ideas of the Year 27 October 2020 by Lauren Harano View On One Page Photo 66 of 80 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 66 Ava From Warrior Nun What to wear: Get ready to fight off evil when you wear a navy blue long-sleeve shirt with casual body armor over it. Pull your hair back into a low pony, and prepare to become a warrior nun. Previous Next Start Slideshow Best Of 2020Halloween Costumes For MenHalloween Costumes For WomenPop Culture Halloween CostumesHalloween CostumesHalloween