The 2016 Rio Olympics start on Friday, but before the games begin, Under Armour's getting one of its top athletes in the competitive spirit with a set of customized sneakers.
Under Armour's 3D-printed Architech trainer—which released in a limited run back in March and sold out immediately—will receive a patriotic white-based makeover, while the brand's knitted SpeedForm Slingshot runner gets a blue and white treatment.
Aside from the USA colors, it's the hidden details that make these especially sentimental for Phelps. Each sneaker features a footprint of the swimmer's three-month-old son, Boomer.
As of now, it looks like this colorway of the Architech will remain a Phelps exclusive, however you can pick up the SpeedForm Slingshot colorway pictured here—sans Boomer's footprints—for $120 from ua.com.