For a chance to win this super limited pair of the Epic React Flyknit, Nike is making runners work for it. The sneaker was designed by Saudi Arabian artist Ali Cha'aban and is limited to only 30 pairs worldwide.

For a chance at the pair, prospective winners must participate in two nighttime runs between the hours of 6 p.m. and 6 a.m. that are at least 2 kilometers using the Nike Running Club app. Once completed, the users will unlock the "Dusk to Dawn" achievement along with the chance to win a pair of the specially-designed runner. 

Cha'aban's version of the Epic React Flyknit utilizes a white upper, royal blue hits including Arabic text embroidered on the lateral toe, tan suede eyelets and Swoosh branding, a special dubrae, and a tan and white gradient midsole. 

Unfortunately for those elsewhere in the world, the contest will only be available to Nike Running Club app users in the United Arab Emirates and Saudi Arabia. It will run until Thursday, June 14.