AdidasUltraboost 21 Shoes - Core Black/Grey Four | Women's
This product is made from biodegradable natural fibres, meaning that at the end-of-life, this product can be broken down into natural elements that will disappear into nature without polluting the soil. This is evaluated by TSE based on publicly available information.
This product is made using more environmentally-friendly processes, which involves using less water or energy or releases less chemical waste. Under this label we currently include chrome-free tanned leather, water-based polyurethane, and independent certifications like bluesign®, Standard 100 by Oeko-Tex and REACH Standards. This is evaluated by TSE based on publicly available information.
This product has been produced by a brand committed to improving the lives of their workers on each stage of the supply chain. This involves being transparent about their manufacturing process as well as providing evidence, such as third party certifications. In order to receive this label, a brand must prove that they work with certified manufacturing partners, who ensures safe working conditions, performs regular site audits, do not use forced labour or child labour, and give their workers the right to organise. This is evaluated by TSE based on publicly available information.
This product is made from organic materials, which are grown in compliance with organic agricultural standards. Organic farming means treating the soil and crops with non-hazardous chemicals, which reduces pollution and human and animal health hazards. This is evaluated by TSE based on publicly available information.
This product consists of materials that can at end-of-life, be fully recycled into new usable materials. This is evaluated by TSE based on publicly available information.
This product is made of at least 70% recycled pre-used materials. This includes used water bottles, fishing nets and other plastics rescued from the ocean. This is evaluated by TSE based on publicly available information.
This product is 100% vegan and do not contain any animal derived materials. Although faux leather (e.g. polyurethane) is a synthetic material, this product will have a smaller environmental footprint than traditional leather. This is evaluated by TSE based on publicly available information.
Adidas Womens Trainers Size Guide
Please note that the shoe sizes on site are UK sizes, to find your correct size, please use the conversion chart below;
NEED FURTHER ASSISTANCE?
The Sports Edit size recommendation:
For adidas trainers we generally recommend taking your usual trainer size, however, if intending to use for running, you may want to size up by half a size for a more comfortable fit.
Not sure which size to choose?
If you have any questions or need help deciding, that’s what we’re here for! Please contact our customer service team who would be happy to assist - email us firstname.lastname@example.org or call us on 0203 793 0964.
- FREE Standard Delivery on orders over $150
- $10 - Standard US Delivery 7-15 days
- $20 - Express US Delivery 1-3 days
Have more questions? Visit our delivery page or get in touch at email@example.com.
Christmas Shipping Dates: Standard: 10th December, Express: 21st December
- Easy, low cost returns to US warehouse
- 30 Day Return Policy
- We work with ReBOUND to offer you several options to return your item to us to make it as easy and convenient as possible
Have more questions? Visit our returns page or get in touch at firstname.lastname@example.org.
See below for the full range of delivery services we offer.
|FREE Standard UK (Royal Mail)||2-3 Working Days||FREE
orders over £60
|Standard UK (Royal Mail)||2-3 Working Days||£3.95|
|Next Day UK (DPD)||Next Day||order before 1pm
|FREE Standard Europe (Royal Mail International)||5-10 working days||FREE
on orders over £159
|Austria, Belgium, Spain, Germany, France, Netherlands (Standard - Royal Mail International)||5-10 working days||£4.50|
|Greece, Italy, Republic of Ireland, Finland, Sweden, Denmark - (Standard Royal Mail International)||5-10 working days||£6.50|
|Romania - (Standard Royal Mail International)||5-10 working days||£7.95|
|Republic of Ireland - (Express DHL)||1-3 working days||£10.95|
|Austria, Belgium, Spain, Germany, France, Netherlands - (Express DHL)||1-3 working days||£12.50|
|Greece, Italy, Finland, Sweden, Denmark - (Express DHL)||2-4 working days||£13.50|
|Romania - (Express DHL)||2-4 working days||£14.50|
|FREE Standard Royal Mail (Royal Mail International)||7-10 working days||FREE
on orders over £115
|USA - (Standard Royal Mail International)||7-10 working days||£8|
|Canada - (Standard Royal Mail International)||7-10 working days||£5.95|
|Australia - (Standard Royal Mail International)||7-10 working days||£9|
|Hong Kong - (Standard Royal Mail International)||7-10 working days||£7.95|
|Canada - (Express DHL)||1-3 working days||£13.95|
|USA - (Express DHL)||1-3 working days||£10.95|
|Hong Kong - (Express DHL)||1-4 working days||£15.95|
Ultraboost 21 is back in a new Core Black/Grey Four colourway. The model has been reconstructed, becoming the pinnacle harmonization of weight, cushioning, and responsiveness. The adidas Primeknit upper offers a second-skin fit, while the responsive Boost cushioning delivers incredible energy return and comfort.
- Primeknit+ textile upper
- Stretchweb outsole
- Continental Rubber for traction
- Lace closure
- Responsive cushioning
- New torsion system
Manufacturing No. FY0402
Size & Fit
All trainers on thesportsedit.com are shown in UK sizes.
Weight: 340 g Midsole drop: 10 mm (heel 30.5 mm / forefoot 20.5 mm)
Fabric & Care
adidas Primeknit+ textile upper, Primeblue, Boost midsole, Stretchweb outsole with Continental Rubber