adidas Ultraboost 21 Trainers Navy Blue Black Green
- Classic last
- Lace close
- adidas Primeknit 360 fabric for added support
- Flexible Stretchweb outsole with Continental rubber compound for superior traction on wet and dry ground; midfoot side reinforcement
- Revolutionary Boost midsole; Torsion Spring technology for added support
- Lightweight and flexible design
- Weight: 310 g (size 42 2/3)
- Drop: 10 mm (heel: 22 mm / forefoot: 12 mm)
- Arch: normal; heel reinforcement with lightweight, adaptable three-dimensional design
Continental rubber sole that provides optimum grip in wet conditions and is highly resistant to wear and tear. Specifically, it provides 21% more traction in dry conditions and 23% more traction in wet conditions.
- adidas Primeknit 360
The adidas Primeknit fabric upper wraps around the foot and adapts to its shape by holding it and favouring movement.
- Limitless Energy
Boost technology is our best cushioning and response system: the more energy you invest, the more energy you get.
- Flexibility and reinforcement
The Fitcounter stabilizer with moulded heel protects and promotes the natural movement of the Achilles tendon.
- Stability and momentum
Torsion Spring technology integrated into the midsole gives you more grip on landing and more thrust on takeoff.
Product availability: The majority of our products are in stock in our warehouses, this is stated on the same page as "Product in stock. Delivery within 24 hours". In products with size options, this information will appear when you select the size you want. If we do not have the product in our warehouse, we will inform you of the estimated delivery time. We will keep you updated on this information and work to ensure you receive your order as quickly as possible. When the product is not available we will give you the option to sign up to an alert to let you know when it is back in stock.
Payment method: You can pay by card, paypal or bank transfer. If you choose the last option, you will receive an email with our bank details for you to make the payment. When we have proof of the payment, we will take care of changing the status of your order and start to prepare your items for delivery.
Delivery costs: The majority of our orders come with free delivery. Purchases over 49 euros in Spain have free delivery excluding products such as dumbbells, weights, MTB, BMX, urban, road and electric bikes. We don't deliver to the Canary Islands, Ceuta or Melilla.
Returns: 100% satisfaction guaranteed, with 365 days to return your purchase. You can manage this via the "My Account" section where you can request a return. You'll find all the information you need here.
Size changes: For products with size options, you can consult the size guide table in the product details, to help you choose the one that fits you best. If when you receive the order, you need a different size, you can change it free of charge (Spain). If the new size isn't available we will find you an alternative. Here you will find all the steps to follow.