Style file: PF Flyers, Madonna's Mercy

PLAID CLAD

Happy birthday, PF Flyers. The tried and true sneaker brand was standard gear for Baby Boomers in Phys Ed classes back in the '50s and '60s -- that's right, back in the dark ages when schools still taught gym. Now manufactured by New Balance, PF turns 75 this year. Feeling retro? Slip into the Center Hi sneakers, $59.99, in various shades, from Formula One Red to Faded Denim, or this summery plaid print; at pfflyers.com.

HAVE MERCY

Madonna's youngest daughter, Mercy, was spotted recently at the New York Kabbalah Center wearing this "Andy Best Friend" tank, $42, from Milk & Hunny. The line, founded by former luxury shoe designer Jena Scaccetti, includes tees and tanks with faces and designs that seem plucked from a very fashionable fairy tale. You'll find this tank, with gold Best Friends "necklace" and a detachable pin/barrette, and more at mymilkandhunny.com.