NIKE 'KO 2.0' Therma-FIT Hoodie (Big Boys) Wolf Grey/Volt PLEASE NOTE: SIZE MAY RUN SMALLER, IF YOU NOT SURE ORDER ONE SIZE UP He'll pack a powerful punch of athletic-minded style each time he sports the Nike Boys' Knock Out 2.0 Hoodie. Featuring Therma-FIT fabric that traps heat, he'll stay warm and cozy in cold weather. A lined hood with extra mesh offers breathable protection against the elements, while ribbed cuffs deliver a secure fit that stays in place as he moves. He'll step out with confidence each time he faces the elements in the KO 2.0