FY0350
adidas UltraBoost 21 'Crew Navy'
$49
FY0395
Adidas Wmns UltraBoost 21 'Halo Blue Fresh Candy'
$56
FY0384
adidas UltraBoost 21 'Blue Oxide'
$64
S23873
adidas UltraBoost 21 'Sonic Ink Screaming Green'
$78
FZ1926
Adidas UltraBoost 21 'LA Rams'
$80
S23754
adidas Wmns UltraBoost 21 Cold.RDY 'Crew Navy'
$89
FX7729
adidas UltraBoost 21 'Sashiko'
$97
GY1332
Adidas UltraBoost 21 'Teaser'
$102
FZ3084
Adidas UltraBoost 21 Primeblue J 'Crew Blue'
$98
How much can you save on Blue Knit adidas UltraBoost 21 Running Shoes?
8 Blue Knit adidas UltraBoost 21 Running Shoes in men's and women's sizes list new with the original box under retail from $49 to $102; the typical pair is $78, and one in ten is 70% off or more. Prices as of Oct 2026.