This shoe has 6% more Boost and a adidas Primeknit+ upper for extra support. The Linear Energy Push (LEP) system provides infinite energy return with every stride, offering optimal forefoot and midfoot support.
This shoe has 6% more Boost and a adidas Primeknit+ upper for extra support. The Linear Energy Push (LEP) system provides infinite energy return with every stride, offering optimal forefoot and midfoot support.
in 1 offers
last seen 22 Apr 2026
The lowest price we last saw for Adidas Ultraboost 21 Primeblue Shoes White Black Women - 43(1/3) was $99.99 at Jim Kidd Sports (last seen 22 Apr 2026). Prices may have changed since.
The all-time low we recorded was $99.99 on 4 Mar 2026.
Prices last updated 22 Apr 2026.
Adidas Ultraboost 21 Primeblue Shoes White Black Women - 43(1/3)
This shoe has 6% more Boost and a adidas Primeknit+ upper for extra support. The Linear Energy Push (LEP) system provides infinite energy return with every stride, offering optimal forefoot and midfoot support.
This shoe has 6% more Boost and a adidas Primeknit+ upper for extra support. The Linear Energy Push (LEP) system provides infinite energy return with every stride, offering optimal forefoot and midfoot support.
Last updated at 22/04/2026 03:45:36
Adidas Womens Ultraboost 21 Primeblue 10.5
Delivery $9.95
originally posted on Google Customer Reviews
I am a long time Hoka user because of the cushion. I am use to ordering half a size up from my street shoe size for the Hoka. I wear an 8.5 in a street shoe so I ordered a 9 for these Adidas. I think I should have ordered an 8.5. My big toes are three quarters of an inch from the end of the shoes. I'm keeping them anyway. As soon as I put them on I was sold. My heels do not slip in and out of the shoes...not even a 1/16 of an inch. The material hugs across the top of my foot. The cushion under my heels is substantial but firm, not marshmallowy. I 100% of the time wear socks in my running shoes, but I believe that anyone looking to go sockless could do so with zero worries about blisters because of the huggability of the shoe. Rocks and sand will not find ... MoreI am a long time Hoka user because of the cushion. I am use to ordering half a size up from my street shoe size for the Hoka. I wear an 8.5 in a street shoe so I ordered a 9 for these Adidas. I think I should have ordered an 8.5. My big toes are three quarters of an inch from the end of the shoes. I'm keeping them anyway. As soon as I put them on I was sold. My heels do not slip in and out of the shoes...not even a 1/16 of an inch. The material hugs across the top of my foot. The cushion under my heels is substantial but firm, not marshmallowy. I 100% of the time wear socks in my running shoes, but I believe that anyone looking to go sockless could do so with zero worries about blisters because of the huggability of the shoe. Rocks and sand will not find their way into this shoe through the ankles and heels.
originally posted on dickssportinggoods.com
I purchased these for myself as a replacement to my Ultraboost 20's which I had mistakenly bought in a light color and was unable to keep clean after a year of regular use. After searching for another pair of the 2020 model and failing, I decided to go ahead and get the 21 version in black. As with my prior pair, these are comfortable but a little more tight fitting than the Ultraboost 20's which have a roomy toe box. I do not use these for running but rather regular walking (several miles per day). While I still would have preferred the Ultraboost 20, these are really nice and comfortable and I'm happy with the purchase.
originally posted on thewodlife.com.au
Ultraboost 21 feels so light it’s perfect for runs walking and impact workouts. Moving feels effortless these are the best shoes I’ve ever had. I was a little sceptical with the knitted body if it will give enough support but it definitely does. The only reason I can’t give 5stars is the sizing. After reading heaps of reviews and most people advising the shoe runs small/tight and should opt for 1/2 size bigger. In my case that wasn’t needed and I’d say my foot is average width. But absolutely will recommend the ultraboost to everyone.
| Sport | Running |
| Product class | Shoe |
| Terrain | Road |
Adidas Womens Ultraboost 21 Primeblue 10.5
Delivery $9.95
I am a long time Hoka user because of the cushion. I am use to ordering half a size up from my street shoe size for the Hoka. I wear an 8.5 in a street shoe so I ordered a 9 for these Adidas. I think I should have ordered an 8.5. My big toes are three quarters of an inch from the end of the shoes. I'm keeping them anyway. As soon as I put them on I was sold. My heels do not slip in and out of the shoes...not even a 1/16 of an inch. The material hugs across the top of my foot. The cushion under my heels is substantial but firm, not marshmallowy. I 100% of the time wear socks in my running shoes, but I believe that anyone looking to go sockless could do so with zero worries about blisters because of the huggability of the shoe. Rocks and sand will not find ... MoreI am a long time Hoka user because of the cushion. I am use to ordering half a size up from my street shoe size for the Hoka. I wear an 8.5 in a street shoe so I ordered a 9 for these Adidas. I think I should have ordered an 8.5. My big toes are three quarters of an inch from the end of the shoes. I'm keeping them anyway. As soon as I put them on I was sold. My heels do not slip in and out of the shoes...not even a 1/16 of an inch. The material hugs across the top of my foot. The cushion under my heels is substantial but firm, not marshmallowy. I 100% of the time wear socks in my running shoes, but I believe that anyone looking to go sockless could do so with zero worries about blisters because of the huggability of the shoe. Rocks and sand will not find their way into this shoe through the ankles and heels.
I purchased these for myself as a replacement to my Ultraboost 20's which I had mistakenly bought in a light color and was unable to keep clean after a year of regular use. After searching for another pair of the 2020 model and failing, I decided to go ahead and get the 21 version in black. As with my prior pair, these are comfortable but a little more tight fitting than the Ultraboost 20's which have a roomy toe box. I do not use these for running but rather regular walking (several miles per day). While I still would have preferred the Ultraboost 20, these are really nice and comfortable and I'm happy with the purchase.
Ultraboost 21 feels so light it’s perfect for runs walking and impact workouts. Moving feels effortless these are the best shoes I’ve ever had. I was a little sceptical with the knitted body if it will give enough support but it definitely does. The only reason I can’t give 5stars is the sizing. After reading heaps of reviews and most people advising the shoe runs small/tight and should opt for 1/2 size bigger. In my case that wasn’t needed and I’d say my foot is average width. But absolutely will recommend the ultraboost to everyone.
I did quite a bit of research before making this purchase. The negatives I was concerned with ended up being validated. Wearing these after wearing brooks was not a good idea. The shoe is very heavy. With it being made of recycled plastic, the fabric does feel a little thick compared to the competition; this causes a lot of inner moisture. The midsole gets most of its height in the heel, the forefront is extremely lacking. It feels like there’s no support. I feel like I can feel the floor beneath my toes and after a few hours, my feet are paying the price. I believe a good pair of insoles may supplement what’s lacking.
Bought this for my mother, who says it is now her go-to shoe due to its comfort, great support (says her posture has improved), and height boost (she's short and these shoes add a generous 2")! Versatile as well--she wears these to work and the gym. I would highly recommend trying these on at the store, if possible, since she sized up for more comfort but my father said his were true to size. The shoes are on the tighter side, like wearing a second pair of thick socks, but breathable. However, if you have wider feet, consider testing these out first.
I love love love the shoes themselves, they are so pretty and comfortable. 3 stars because they came in disgusting condition. There were multiple little black hairs inside of the shoes that I had to vacuum out. The outside of the shoes were already scuffed and dirty on the bottom. I was completely disgusted and disappointed that they were used, but I guess that’s what I get for buying them on sale?? Even on sale they were $100 so I was expecting way better lol.
Nice colours but dissapointing for a few reasons: The first being, they're clunkier in real life.They're narrow, so if you have wide feet just avoid adidas shoes in general.From the pictures and name, I thought they'd be that light-weight, sock-like quality. However, the material is quite stiff and they aren't that light weight.Lastly, I'm really glad I got them on sale plus an added discount because I would've been gutted if I'd paid full price for these. They really aren't anything special and the quality it's much better than any other trainer. They're just a nice colour.
I found these to be absolutely wonderful in every way. I will say these do run about a half size bigger (which is fine with me) my daughter who usually wear a size 9, wears her black pair at a size 8.5, I usually wear a size 8 in most shoes nevause they usually run small, my foot actually measures a size 7, so I usually go with a size 7.5 to an 8 to account for socks, I could have gotten my actual size of these an been fine but since this is my first pair of adidas sneakers , I went with an 8, I wish I'd been able to try these on before buying but that is ok. These are honestly the most comfortable shoes I've ever worn. They feel like you're walking on clouds, they have a springy step to them which is really neat. I love my new balance brand sneakers but these ... MoreI found these to be absolutely wonderful in every way. I will say these do run about a half size bigger (which is fine with me) my daughter who usually wear a size 9, wears her black pair at a size 8.5, I usually wear a size 8 in most shoes nevause they usually run small, my foot actually measures a size 7, so I usually go with a size 7.5 to an 8 to account for socks, I could have gotten my actual size of these an been fine but since this is my first pair of adidas sneakers , I went with an 8, I wish I'd been able to try these on before buying but that is ok. These are honestly the most comfortable shoes I've ever worn. They feel like you're walking on clouds, they have a springy step to them which is really neat. I love my new balance brand sneakers but these adidas are just so amazing on how truly comfy these are. I have found that this really neat color is kinda hard to match though so I do intend on adding more colors to my collection. My dearly departed brother used to be a die hard adidas fan before he passed away, all his clothing and shoes were adidas and now I know why, these really are a dream to walk, stand, and run in.
These shoes are incredibly comfortable and great for working out or just every day wear. I purchased the Ash Pearl/Hazy Rose and it's a beautiful neutral color. I only have two cons to note: 1) Sizing: I'm usually between a 6.5 and 7 in all shoes. However, I'm consistently a 6.5 in the Adidas Ultraboost 20. I initially purchased the Ultraboost 21 in a 6.5 and they fit, but were cramped in the toes. I imagine they would hurt after a full workout or run. I exchanged for a 7 and they fit much better. So I suggest sizing up a half size. 2) Bulky: These provide a lot of comfort and support, which means they can look a bit bulky. They may look quite wide, but the comfort is totally worth it.
I started wearing Adidas Ultraboost about a year ago after my boyfriend swore by them for running. I got one pair and haven’t looked back. Will never wear another running shoe. Wearing them now actually. Only problem is I want to wear them all the time, not just running. So now I have multiple Ultraboost: some for running so for day to day fashion wear. Expensive habit but worth every penny. Never had an issue. I wear a 7 usually but have lately sized down to a 6.5 for tighter running fit.
| Sport | Running |
| Product class | Shoe |
| Terrain | Road |