'It's time for the ultimate sneaker upgrade! Your passport to limitless comfort, the adidas Ultraboost 1.0 is sure to be the top star of your collection. Designed to help you make waves of change, these sneakers feature an upper made with a high-performance yarn that contains at least 50% Parley Ocean Plastic. Utilizing reimagined plastic waste that's intercepted on remote islands, beaches, coastal communities, and shorelines, these shoes help you reduce ocean pollution. The adidas PRIMEKNIT upper envelops your feet in gentle hug-like comfort, while the BOOST on the midsole transforms each step into a cushioned leap. From a walk in the park to a weekend run with friends, stay charged through it all with the adidas Ultraboost 1.0. adidas Ultraboost 1.0 features: Long days on your feet call for comfort that keeps up. The adidas Ultraboost 1.0 blends soft, springy cushioning with a sleek knit build that feels just as good on walks, light runs, gym sessions, and everyday wear. A foot-hugging adidas PRIMEKNIT upper pairs with responsive BOOST underfoot to deliver that signature Ultraboost ride, while recycled materials help move the design forward. Size & Fit GuidanceMost reviewers say this pair fits true to size with a secure, foot-hugging feel. For the best fit, we recommend your usual size for a locked-in feel, while shoppers with wider feet or a higher instep may prefer going up a half-size for a little more ease through the opening and top of the foot. Best ForBest for everyday comfort, long walks, standing for hours, light runs, and versatile gym-to-street wear. Styling & VersatilityReviewers consistently call out how easy the Ultraboost 1.0 is to style, thanks to its clean running-inspired shape and streamlined knit upper. It pairs naturally with everything from workout gear and scrubs to jeans, leggings, and casual weekend fits. Break-In & DurabilityMany wearers say the comfort is there from the first step, with the knit upper and BOOST cushioning creating a soft, broken-in feel right away. The supportive collar can feel snug at first for some, but it tends to feel more natural after a few wears."