Question 1

Do these shoes run hot?

Accepted Answer

The knitted upper is not especially breathable. Many users in warmer climates report sweaty feet after runs, so if you run in hot weather, look for the primeknit+ with better ventilation or consider a mesh trainer.

Question 2

Are the Ultraboost 5x good for walking?

Accepted Answer

Yes, they're one of the most popular walking shoes in the Ultraboost line. The cushioning is excellent for hard floors, and the sneaker's weight is less noticeable when walking compared to running.

Question 3

Are the Ultraboost 5x machine washable?

Accepted Answer

Adidas recommends spot cleaning with a soft brush and mild detergent. Machine washing can damage the knit upper and degrade the foam—avoid if you want to extend the shoe's life.

Question 4

Do the Ultraboost 5x have a break-in period?

Accepted Answer

Most users report no break-in period needed—the Boost foam feels soft out of the box. However, the upper and Torsion bar may take a few runs to soften and adapt to your foot shape, especially if you bought true to size.

Question 5

Why do my feet slide in the heel even when tied tightly?

Accepted Answer

The heel collar is padded and plush, but the lack of a structured heel counter can cause slippage for some feet. Try using a runner's knot (heel lock) to secure the foot better, or size down if you have narrow heels.

Question 6

What is the heel-to-toe drop?

Accepted Answer

It's 10mm drop, which is fairly standard for a road trainer. Some users with Achilles issues have found that a lower drop shoe is more comfortable.

Question 7

What's the difference between Ultraboost 5x and Ultraboost Light?

Accepted Answer

Ultraboost Light is a bit lighter and uses the new Boost Light foam, while the 5x returns to a thicker, more traditional Boost stack. The 5x feels plushier, while Light is slightly more energetic and better for faster runs.

Question 8

Are these good for marathon distances?

Accepted Answer

They can carry you through a marathon if you're a heel-striking easy-pace runner, but the weight and lack of responsiveness will make the later miles feel more taxing. A lighter, more rockered shoe would be better for race day.

Product	Rating	Price	Match
adidas Men's Ultraboost 5x Running Shoes 10.5 White/White/Black	⭐ 4.1	—	Current
Brooks Women's Ghost 15 Neutral Running Shoe 5 Wide Peacoat/Pearl/Salt Air	⭐ 4.7	—
Brooks Women's Ghost 14 Neutral Running Shoe 10 Pearl/Black/Pink	⭐ 4.7	—
On Men's Cloudmonster Sneakers Undyed/Flame 12	⭐ 4.6	—
Brooks Men’s Adrenaline GTS 24 Supportive Running Shoe 9 Black/Biscuit	⭐ 4.6	—
Brooks Men’s Ghost 16 Neutral Running Shoe 10 Primer/Grey/Lime	⭐ 4.6	—

Menu

Explore Content

Shop by Category

adidas Men's Ultraboost 5x Running Shoes 10.5 White/White/Black

Technical Specifications

Community Q&A

Compare Similar Products

Customer Insights

Plush Comfort

Aesthetic Appeal

Durability

Weight

Sizing / Fit

Versatility

About This Review

How We Review This Product

Our Research Process