Upgrade your activewear with the NB Power X Bra. Pairing elevated high impact support with luxuriously soft jersey fabric, this sports bra will help minimize distractions so you can give each cardio session your all. Moisture-wicking NB DRY technology and breathable cups help you stay dry, while adjustable padded straps provide a comfortable, customized fit. This version features a classic back hook-and-eye closure.
Meets New Balance’s green leaf standard: 50% or more materials are sourced as environmentally preferred. See below for this item’s material details. Learn more about New Balance’s green leaf standard here.
Use the chart below to convert your bra size to your New Balance alpha size
(XS-XXL) or split alpha size (XS A-C thru XXL D-DD).
Don’t know your bra size? Use your measurements instead.
Find your underbust measurement by wrapping a measuring
tape underneath your bust where your bra band usually sits. Your underbust
measurement will correspond with "Band Size."
Find your overbust measurement by wrapping a measuring
tape over your bust at the widest part.
Find your alpha size by matching your band size with
your overbust measurement in the chart below.
Underbust Measurement
25"-26"
27"-28"
29"-30"
31"-32"
33"-34"
35"-36"
37"-38"
39"-40"
Band Size
30
32
34
36
38
40
42
44
A
30.3" - 31.1" 30A XS XS
(A-C)
32.3" - 33.1" 32A S S
(A-C)
34.3" - 35.0" 34A S S
(A-C)
36.2" - 37.0" 36A M M
(A-C)
38.2" - 39.0" 38A L L
(A-C)
40.2" - 40.9" 42A XL XL
(A-C)
42.1" - 42.9" 42A XL XL
(A-C)
44.1" - 44.9" 44A XXL XXL
(A-C)
B
31.1" - 31.9" 30B XS XS
(A-C)
33.1" - 33.9" 32B S S
(A-C)
35" - 35.8" 34B S S
(A-C)
37.0" - 37.8" 36B M M
(A-C)
39.0" - 39.8" 38B L L
(A-C)
40.9" - 41.7" 40B XL XL
(A-C)
42.9" - 43.7" 42B XL XL
(A-C)
44.9" - 45.7" 44B XXL XXL
(A-C)
C
31.9" - 32.7" 30C XS XS
(A-C)
33.9" - 34.6" 32C S S
(A-C)
35.8" - 36.6" 34C M M
(A-C)
37.8" - 38.6" 36C L L
(A-C)
39.8" - 40.6" 38C L L
(A-C)
41.7" - 42.5" 40C XL XL
(A-C)
43.7" - 44.5" 42C XL XL
(A-C)
45.7" - 46.5" 44C XXL XXL
(A-C)
D
32.7" - 33.5" 30D S S
(D-DD)
34.6" - 35.4" 32D S S
(D-DD)
36.6" - 37.4" 34D M M
(D-DD)
38.6" - 39.4" 36D L L
(D-DD)
40.6" - 41.3" 38D XL XL
(D-DD)
42.5" - 43.3" 40D XL XL
(D-DD)
44.5" - 45.3" 42D XXL XXL
(D-DD)
DD
33.5" - 34.3" 30DD S S
(D-DD)
35.4" - 36.2" 32DD M M
(D-DD)
37.4" - 38.2" 34DD M M
(D-DD)
39.4" - 40.2" 36DD L L
(D-DD)
41.3" - 42.1" 38DD XL XL
(D-DD)
43.3" - 44.1" 40DD XL XL
(D-DD)
45.3" - 46.1" 42DD XXL XXL
(D-DD)
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