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The sneakers feature the company’s latest UA Hovr cushioning system, said to provide a plush feel underfoot as well as energy return and responsiveness. The two models also have an external heel counter and a durable rubber outsole in common.
The two styles do have some differences, however. The Sonic is executed with a 3-D molded insole, a stretchable tongue and a flat knit upper. The Phantom has an atypical 5/8-inch collar height, a circular knit upper and a 3-D molded and perforated chamois for a secure fit.
“We’re delivering one of the most state-of-the-art running platforms that exist in footwear today,” Topher Gaylord, group GM of Under Armour’s run division, told Footwear News while visiting its Portland, Ore., facility on Thursday. “It’s the perfect combination of comfort, underfoot cushioning and energy return for the consumer. That balance is what makes the product for so special.”