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Nike React Infinity Run Flyknit 2 Running Shoes - Women's

RRP £139.95 £118.96
You save: £20.99
In stock
SKU
CT2423-002

Advice for Road Runners

The upper of the React Infinity Run Flyknit 2 has been designed to offer increased breathability and support in comparison with the upper of the original React Infinity Run Flyknit. The cushioning levels of the tongue and ankle collar have also been updated for improved comfort.

The React Infinity Run Flyknit was designed with the specific aim of reducing the likelihood of injury. The midsole is constructed with React foam and a wide base, providing a soft yet highly responsive and stable underfoot feel. The rocker-like design of the midsole will help the foot transition from heel to toe - making steady runs feel easier and tired legs to keep moving forward at the end of a long run. Nike worked with British Columbia Sports Medicine Research Foundation to understand the effectiveness of this specific midsole design and have made no changes to the midsole in the latest model: the React Infinity Run Flyknit 2.

Key Features:

  • React foam midsole is designed for zonal performance, providing flexibility, cushioning and support throughout your stride
  • Limited material between the foot and the midsole for a softer underfoot feel
  • Substantial midsole height for plush feel and reduced stress on joints and muscles
  • Wide heel counter adds stability, aligning leg joints and reducing stress
  • Cushioned ankle collar and tongue reduces the chance of friction
  • Rocker-like design for quick and smooth heel to toe transition
  • Durable upper with supportive Flywire knit construction


The React Infinity Flyknit 2 provides Nike’s best cushioning for longer runs and is the ideal option if you want to reduce stress on muscles and joints during steady paced runs. If you’re looking for a stability shoe for faster paced runs, check out the Air Zoom Structure 23.

Shoe size is a personal preference and everyone's feet are different, but we want to ensure you avoid any pain or discomfort from bruised toenails, rubbing, blistering or pins and needles. Your running shoes should have enough width to allow you to spread your toes and should have some space at the front (we recommend having a half to one thumb's width of space from the end of your longest toe to the front of your running shoes). This usually means that your running shoe will be at least a half size bigger than your regular shoe size though this can vary from brand to brand.

Read more

Advice for Road Runners

The upper of the React Infinity Run Flyknit 2 has been designed to offer increased breathability and support in comparison with the upper of the original React Infinity Run Flyknit. The cushioning levels of the tongue and ankle collar have also been updated for improved comfort.

The React Infinity Run Flyknit was designed with the specific aim of reducing the likelihood of injury. The midsole is constructed with React foam and a wide base, providing a soft yet highly responsive and stable underfoot feel. The rocker-like design of the midsole will help the foot transition from heel to toe - making steady runs feel easier and tired legs to keep moving forward at the end of a long run. Nike worked with British Columbia Sports Medicine Research Foundation to understand the effectiveness of this specific midsole design and have made no changes to the midsole in the latest model: the React Infinity Run Flyknit 2.

Key Features:

  • React foam midsole is designed for zonal performance, providing flexibility, cushioning and support throughout your stride
  • Limited material between the foot and the midsole for a softer underfoot feel
  • Substantial midsole height for plush feel and reduced stress on joints and muscles
  • Wide heel counter adds stability, aligning leg joints and reducing stress
  • Cushioned ankle collar and tongue reduces the chance of friction
  • Rocker-like design for quick and smooth heel to toe transition
  • Durable upper with supportive Flywire knit construction


The React Infinity Flyknit 2 provides Nike’s best cushioning for longer runs and is the ideal option if you want to reduce stress on muscles and joints during steady paced runs. If you’re looking for a stability shoe for faster paced runs, check out the Air Zoom Structure 23.

Shoe size is a personal preference and everyone's feet are different, but we want to ensure you avoid any pain or discomfort from bruised toenails, rubbing, blistering or pins and needles. Your running shoes should have enough width to allow you to spread your toes and should have some space at the front (we recommend having a half to one thumb's width of space from the end of your longest toe to the front of your running shoes). This usually means that your running shoe will be at least a half size bigger than your regular shoe size though this can vary from brand to brand.

More Information
SKU CT2423-002
Colour Black
Gender Womens
Shoe Type Stability Soft
Technical Features
  • React foam midsole is designed for zonal performance, providing flexibility, cushioning and support throughout your stride
  • Reduced material between the foot and the midsole for a softer underfoot feel
  • Increased midsole height for plush feel and reduced stress on joints and muscles
  • Wide heel counter adds stability, aligning leg joints and reducing stress
  • Cushioned heel collar reduces friction
  • Rocker-like design for quick and smooth heel to toe transition
  • Durable upper with supportive Flywire knit construction

Nike Size Guide

Nike Men's Shoes

UK6.577.588.599.51010.51111.512
EU 40.5 41 42 42.5 43 44 44.5 45 45.5 46 47 47.5
Foot Length (cm) 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 20.5 31

Please note that the above size guide is as supplied by the manufacturer. We review it regularly but it may be subject to change.

Nike Women's Shoes

UK3.544.555.566.577.588.5
EU 36.5 37.5 38 38.5 39 40 40.5 41 42 42.5 43
Foot Length (cm) 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28

Please note that the above size guide is as supplied by the manufacturer. We review it regularly but it may be subject to change.

Nike Unisex Shoes

UK3.544.555.56 (EU 39) 6 (EU 40)6.577.588.599.51010.511
EU 36 36.5 37.5 38 38.5 39 40 40.5 41 42 42.5 43 44 44.5 45 45.5 46
Foot Length (cm) 23 23.5 23.5 24 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30

Please note that the above size guide is as supplied by the manufacturer. We review it regularly but it may be subject to change.

Nike Women's Clothing

X/Small (UK 4-6)Small (UK 8-10)Medium (UK 12-14)Large (UK 16-18)X/Large (UK 20-22)
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Chest 76-83 29.5-32.5 83-90 32.5-35.5 90-97 35.5-38 97-104 38-41 104-114 41-44.5
Waist 60-67 23.5-26 67-74 26-29 74-81 29-31.5 81-88 31.5-34.5 88-98 34.5-38.5
Hip 84-91 33-35.5 91-98 35.5-38.5 98-105 38.5-41 105-112 41-44 112-120 44-47

Please note that the above size guide is as supplied by the manufacturer. We review it regularly but it may be subject to change.

Nike Men's Clothing

X/SmallSmallMediumLargeX/LargeXX/Large
cminchescminchescminchescminchescminchescminches
Chest 80-88 32.5-35 88-96 35-37.5 96-104 37.5-41 104-112 41-44 112-124 44-48.5 124-136 48.5-53.5
Waist 65-73 26-29 73-81 29-32 81-89 32-35 89-97 35-38 97-109 38-43 109-121 43-47.5
Hip 80-88 32.5-35 88-96 35-37.5 96-104 37.5-41 104-112 41-44 112-120 44-47 120-128 47-50.5

Please note that the above size guide is as supplied by the manufacturer. We review it regularly but it may be subject to change.

Delivery Methods

UK Deliveries

Delivery Type Cost Courier Delivery Time
Standard Delivery £4.50 DPD or Royal Mail Processed for despatch in 2-5 working days. Delivery 2-5 working days after despatch to the United Kingdom. FREE on orders of £25 and over.
Items for delivery are sourced and packaged from our stores. As much as we aim to limit multiple deliveries, sometimes due to stock limitations this cannot be avoided.
Collect from Run4It Shop Free - Available for collection within 2-5 working days. Please bring your order confirmation email (receipt) as proof of purchase.
Instore Gift Cards £1.75 Royal Mail Processed for despatch in 5-7 working days. Delivery 1-2 working days after despatch to the United Kingdom. Please select £4.50 Standard Delivery at checkout. A discount of £2.75 will then be applied to your shipping cost. FREE on orders over £25. These can only be redeemed in our stores.
Online Gift Vouchers Free - Our Online Gift Vouchers will be sent via email as soon as the order has been placed. These can only be redeemed online.

Royal Mail Deliveries

It's not always possible for us to get your order to you using our courier - DPD Local - due to geographic restrictions. As such, we will send your order to you via Royal Mail for the following postcodes:


Area Post Codes
AB - Aberdeenshire AB31-38, AB41-45, AB51-56
BT - Northern Ireland All BT postcodes
FK - Falkirk FK17-FK21
GY - Guernsey All GY postcodes
HS - Scottish Highlands All HS postcodes
IM - Isle of Man All IM postcodes
IV - Inverness All IV postcodes
JE - Jersey All JE postcodes
KA - Ayrshire KA27-KA28
KW - Wick & Scottish Islands All KW postcodes
PA - Argyll, Bute, & Islands PA20-PA80
PH - Perthshire PH19-PH50
PO - Isle of Wight PO30-PO41
ZE - Shetland All ZE postcodes
BFPO - British Forces All BFPO postcodes

FREE Returns

We hope you will be satisfied with your purchase from Run4It, however if you’re not completely satisfied you can return it to us within 30 days (or 90 days for Brooks gear) of receipt for FREE.

Read full details on how to return an item to us at Returns & Exchanges page. You can also return your order to any of our Run4It Shops.

Please note - if you paid for your order via PayPal or Amazon Pay you can only return or exchange your order via post.

Read full details on our Terms & Conditions.