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- 3MC 1
A
B
- Break Start 1
- Busenitz 1
- BYW Select 1
C
- Campus 6
- Centennial 1
- Continental 80 2
- Copa Premiere 1
- Crazy 1 ADV 1
- Crazy BYW 2
D
E
F
- Forum 2
H
I
- Icon 7 1
- Icon Bounce 1
J
- Jabbar 1
K
- Kaptir 1
L
- Lightblaze Slide 1
- Ligra 1
- LWST 1
M
- Multix 2
N
- Nite Jogger 1
- Nizza 1
- NMD Runner 4
- NMD XR1 1
O
- Own The Game 1
- Ozweego 1
R
- Rivalry 1
S
- Samba 3
- Seeley 1
- SL72 2
- Speed Trainer 1
- Sprintstar 1
- Stadt 1
- Stan Smith 1
- Supernova 1
- Swift Run 1
T
U
X
Y
- Yeezy Quantum 1
- Yung-96 1
Z
- ZX 2K Boost 1
- ZX 750 1
- ZX Flux 1
Which Men's Red adidas UltraBoost 21 cost under $50?
1 Men's Red adidas UltraBoost 21 sell new with the original box from $49; the typical pair is $49. 1 of them list under retail, one in ten of those is 70% off or more. Prices as of Oct 2026.