• Soft Bras
    Size
    Underbust
    Bust
    Cups
    XS
    26.5-27.5"
    28.5-31.5"
    A
    S
    28-29"
    31.5-34.5"
    A-B
    S+
    28-29"
    34-36"
    C-D
    M
    30-31"
    34-36"
    B-C
    M+
    30-31"
    36.5-38.5"
    D-E
    L
    32-34"
    35.5-38.5"
    B-C
    L+
    32-34"
    39-42"
    D-E
    XL
    35-37"
    39-42"
    C-D
    XL+
    35-37"
    42.5-46.5"
    E-F
    2XL
    38-41"
    43-46"
    C-D
    2XL+
    38-41"
    47-51"
    E-F
    3XL+
    42-45"
    51-55"
    F

    Sizing Tips:

    • "+" indicates accommodation of larger cup sizes
    • If between sizes, we recommend sizing up
    • If you have a larger cup than indicated with the underbust, size up
Size
Underbust
Bust
Cups
XS
26.5-27.5"
28.5-31.5"
A
S
28-29"
31.5-34.5"
A-B
S+
28-29"
34-36"
C-D
M
30-31"
34-36"
B-C
M+
30-31"
36.5-38.5"
D-E
L
32-34"
35.5-38.5"
B-C
L+
32-34"
39-42"
D-E
XL
35-37"
39-42"
C-D
XL+
35-37"
42.5-46.5"
E-F
2XL
38-41"
43-46"
C-D
2XL+
38-41"
47-51"
E-F
3XL+
42-45"
51-55"
F

Sizing Tips:

  • "+" indicates accommodation of larger cup sizes
  • If between sizes, we recommend sizing up
  • If you have a larger cup than indicated with the underbust, size up

HURRY, SHOP 25% OFF SITEWIDE W/CODE 25OFF

Shop All
Women's Underwear
Shop All Bras - Organic Cotton Underwear
Bras
ROBE NOW $98
Lounge
Men's
Gale
Clearance
Underwear
Women's Underwear
Men's Underwear
Gale
Bras
Shop All Bras
Keyhole Soft Bra
Triangle Soft Bra
Lounge
Garnet Sets
Boxy Tee
Now $98!
Essential Robe
Men's
Clearance
Gift Cards
Shop All Products

Free Shipping on U.S. Orders Over $75

Women's Underwear
Lounge
Men's Organic Cotton Underwear
Men's Underwear

Top Search Terms:

Thongs Socks Robes Boxers
SALE Knickey Keyhole Bralette in Cacao

Melonee is a 40/DDD, wearing a Subset 3XL

Landa is a 33/B, wearing a Subset XS

See it on:
Rated 4.3 out of 5
Based on 863 reviews
LAST CHANCE!

SALE Knickey Keyhole Bralette

$15
Size:

Color:

Clearance
+ More Colors
-
+

Sign up for our waitlist to be notified when in stock

Free Shipping on U.S. Orders Over $75

Ships in 1 to 2 Business Days

Easy-to-use online Returns Portal

Made with Organic
Cotton

Breathable and
Moisture-Wicking

Recyclable through
Subset's Program

Eco-Friendly and Sustainable Materials

Complete The Set
Organic Cotton High-Rise Brief in Carbon
2XS
XS
S
M
L
XL
2XL
3XL
4XL
Organic Cotton High-Rise Brief in Carbon
$20
Select Size
More colors
Organic Cotton Mid-Rise Bikini in Cacao
2XS
XS
S
M
L
XL
2XL
3XL
Organic Cotton Mid-Rise Bikini in Cacao
$20
Select Size
More colors
Organic Cotton Mid-Rise Brief in Spice
2XS
XS
S
M
L
XL
2XL
3XL
4XL
Organic Cotton Mid-Rise Brief in Spice
$20
Select Size
More colors
Organic Cotton Mid-Rise Bikini in Wheat
2XS
XS
S
M
L
XL
2XL
3XL
Organic Cotton Mid-Rise Bikini in Wheat
$20
Select Size
More colors
Organic Cotton High-Rise Thong in Cloud Nine
2XS
XS
S
M
L
XL
2XL
3XL
Organic Cotton High-Rise Thong in Cloud Nine
$20
Select Size
More colors
Organic Cotton Mid-Rise Brief in Lunar
2XS
XS
S
M
L
XL
2XL
3XL
Organic Cotton Mid-Rise Brief in Lunar
$20
Select Size
More colors
Organic Cotton Mid-Rise Hipster in Carbon
2XS
XS
S
M
L
XL
2XL
3XL
Organic Cotton Mid-Rise Hipster in Carbon
$20
Select Size
More colors
Organic Cotton High-Rise Thong in Cacao
2XS
XS
S
M
L
XL
2XL
3XL
4XL
Organic Cotton High-Rise Thong in Cacao
$20
Select Size
More colors
Low Rise Thong - Light Brown - Knickey Organic Underwear
2XS
XS
S
M
L
XL
2XL
3XL
Organic Cotton Low-Rise Thong in Spice
$20
Select Size
More colors
Organic Cotton High-Rise Thong in Wheat
2XS
XS
S
M
L
XL
2XL
3XL
4XL
Organic Cotton High-Rise Thong in Wheat
$20
Select Size
More colors
Organic Cotton High-Rise Thong in Lunar
2XS
XS
S
M
L
XL
2XL
3XL
Organic Cotton High-Rise Thong in Lunar
$20
Select Size
More colors
  • Description
    Our original Knickey Keyhole cut-out balconette brings a bit of interest to a supportive standby. Feel cute and comfortable with a wide underbust band, semi-adjustable straps and self-lined cups. Four rows of hook-and-eyes make this bralette fit for any bust, A-DD. Sale Bralettes are exchange only. 
  • Fit Details

    Cut: Moderate
    Support: Medium
    Adjustability: Band & Straps 

    • Partial chest coverage with flattering Scoop shape and keyhole cutout
    • Good hold from darted, double-lined cups, giving lift without bulk
    • 4-row hook & eye closure at back for adjustability
    • Adjustable shoulder straps
  • Materials & Care

    Fabric: 95% Certified Organic Cotton, 5% Elastane
    Straps: 70% Recycled Polyester, 30% Spandex
    Hardware: Recycled Zinc & Alloy 
    Band: 100% Recycled Polyester & Natural Rubber
    Closure: 78% Regenerated Nylon, 22% Elastane

    Wash in cold water and hang dry to save energy and extend the life of your bra. Earth-friendly detergents are highly recommended.

  • Shipping & Returns

    Shipping

    • Free shipping on US orders over $75
    • US Flat Rate shipping $5
    • Carbon-Neutral shipping

    Returns

    • First Pair Guarantee on all underwear
    • Free exchanges and returns to store credit
    • Returns to refund with a $8 return shipping fee
    • Pre-paid shipping labels provided to US orders 
    • Easy-to-use online Returns Portal

    For more information on shipping, returns, & international orders swing by our FAQs

  • Impact

    This Product's Impact

    1.8 kg of emissions offset

    275.1 glasses of drinking water saved

    6.8 sq ft of land saved from pesticides

  • End of Life

    We take responsibility for the full lifecycle of our products, but we don’t stop there. We started the world’s first intimates Recycling Program to divert items from any brand, Subset or not.

    At the end of this product's life, you can recycle it here.

Our original Knickey Keyhole cut-out balconette brings a bit of interest to a supportive standby. Feel cute and comfortable with a wide underbust band, semi-adjustable straps and self-lined cups. Four rows of hook-and-eyes make this bralette fit for any bust, A-DD. Sale Bralettes are exchange only. 
Description
Our original Knickey Keyhole cut-out balconette brings a bit of interest to a supportive standby. Feel cute and comfortable with a wide underbust band, semi-adjustable straps and self-lined cups. Four rows of hook-and-eyes make this bralette fit for any bust, A-DD. Sale Bralettes are exchange only. 
Fit Details

Cut: Moderate
Support: Medium
Adjustability: Band & Straps 

  • Partial chest coverage with flattering Scoop shape and keyhole cutout
  • Good hold from darted, double-lined cups, giving lift without bulk
  • 4-row hook & eye closure at back for adjustability
  • Adjustable shoulder straps
Materials & Care

Fabric: 95% Certified Organic Cotton, 5% Elastane
Straps: 70% Recycled Polyester, 30% Spandex
Hardware: Recycled Zinc & Alloy 
Band: 100% Recycled Polyester & Natural Rubber
Closure: 78% Regenerated Nylon, 22% Elastane

Wash in cold water and hang dry to save energy and extend the life of your bra. Earth-friendly detergents are highly recommended.

Shipping & Returns

Shipping

  • Free shipping on US orders over $75
  • US Flat Rate shipping $5
  • Carbon-Neutral shipping

Returns

  • First Pair Guarantee on all underwear
  • Free exchanges and returns to store credit
  • Returns to refund with a $8 return shipping fee
  • Pre-paid shipping labels provided to US orders 
  • Easy-to-use online Returns Portal

For more information on shipping, returns, & international orders swing by our FAQs

Impact

This Product's Impact

1.8 kg of emissions offset

275.1 glasses of drinking water saved

6.8 sq ft of land saved from pesticides

End of Life

We take responsibility for the full lifecycle of our products, but we don’t stop there. We started the world’s first intimates Recycling Program to divert items from any brand, Subset or not.

At the end of this product's life, you can recycle it here.

SALE Knickey Keyhole Bralette
-
+

Committed to organic cotton excellence

Fit First

First layers that are built for body and easy on the earth - because you deserve a drawer full of faultless essentials that are compromise-free.

Certified Sustainable

Organic cotton’s growth, harvest, and manufacturing processes are safe for farm and factory workers and are kind on Earth’s water and land.

Fair Trade

Our factories are Fair Trade certified to ensure everyone involved in the making of our products is treated with the respect and care they deserve.

Free Returns

Carbon-neutral shipping

Easy Exchanges

Who’s loving Subset lately

Set Your New Standard @wearsubset

@antrieu
@bstereo
@bunz_walker
@rocky_barnes
@antrieu
@bstereo
@bunz_walker
@rocky_barnes
Shop now and swap sizes & styles risk-free.
Free Exchanges, Easy Returns
Shop now and swap sizes & styles risk-free.
Free Exchanges, Easy Returns
Shop now and swap sizes & styles risk-free.
Free Exchanges, Easy Returns
Shop now and swap sizes & styles risk-free.
Free Exchanges, Easy Returns

Reviews

Write a Review
average rating 4.3 out of 5
Based on 863 reviews
  • 5 Stars
    530 Reviews
  • 4 Stars
    163 Reviews
  • 3 Stars
    87 Reviews
  • 2 Stars
    52 Reviews
  • 1 Star
    31 Reviews
80% of reviewers would recommend this product to a friend
863 Reviews
Reviewed by Ange M., from United States
Verified Buyer
Organic Cotton Keyhole Soft Bra in Stone
Reviewing
Organic Cotton Keyhole Soft Bra in Stone
I recommend this product
Age Range
18-24
Size Purchased
S
I usually wear
  • 34
  • B
Rated 5 out of 5
Review posted

Outstanding!

The most comfortable bra I've ever worn. Neither the straps nor the clasps dig into my shoulders. The fabric isn't too revealing. The Keyhole is perfect for sweaty gals like me. An outstanding product!

Loading...
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 2 on a scale of minus 2 to 2, where minus 2 is Lacking, 0 is Just Right and 2 is Dreamy
Support
Rated 0 on a scale of minus 2 to 2, where minus 2 is Not enough, 0 is Solid Support and 2 is Very Supportive
Was this helpful?
Reviewed by Susan M., from United States
Verified Buyer
Organic Cotton Keyhole Soft Bra in Marine
Reviewing
Organic Cotton Keyhole Soft Bra in Marine
I recommend this product
Age Range
65+
Size Purchased
3XL+
I usually wear
  • 46
  • F
Rated 5 out of 5
Review posted

Keyhole Brs

Love love these bras. This is my second order because these bras are wonderful and I wanted to have a good supply. These are the only ones I’ll wear! Max comfort.

Loading...
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 2 on a scale of minus 2 to 2, where minus 2 is Lacking, 0 is Just Right and 2 is Dreamy
Support
Rated 0 on a scale of minus 2 to 2, where minus 2 is Not enough, 0 is Solid Support and 2 is Very Supportive
Was this helpful?
Reviewed by Grace I., from United States
Verified Buyer
Organic Cotton Keyhole Soft Bra in Stone
Reviewing
Organic Cotton Keyhole Soft Bra in Stone
I recommend this product
Age Range
25-34
Size Purchased
M
I usually wear
  • 32
  • C
Rated 5 out of 5
Review posted

Comfy!

I really like the keyhole bra. The triangle style didn’t work out for me (the elastic straps dug into my shoulders too much) but this style is SO comfy. I had to size up for the right band fit. It took a bit of work to get the size and style right, but customer service was super helpful and got me what I needed. I was impressed!

Loading...
Fit
Rated -2 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 1 on a scale of minus 2 to 2, where minus 2 is Lacking, 0 is Just Right and 2 is Dreamy
Support
Rated 0 on a scale of minus 2 to 2, where minus 2 is Not enough, 0 is Solid Support and 2 is Very Supportive
Was this helpful?
Reviewed by Ariel C., from United States
Verified Buyer
Organic Cotton Keyhole Soft Bra in Cacao
Reviewing
Organic Cotton Keyhole Soft Bra in Cacao
I recommend this product
Age Range
35-44
Size Purchased
L
I usually wear
  • 36
  • B
Rated 5 out of 5
Review posted

Most comfortable

This bra is so comfortable and still pretty supportive for smaller cup sizes. Shipping took longer than expected.

Loading...
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 1 on a scale of minus 2 to 2, where minus 2 is Lacking, 0 is Just Right and 2 is Dreamy
Support
Rated -1 on a scale of minus 2 to 2, where minus 2 is Not enough, 0 is Solid Support and 2 is Very Supportive
Was this helpful?
Reviewed by Amy B., from United States
Verified Buyer
Organic Cotton Keyhole Soft Bra in Carbon
Reviewing
Organic Cotton Keyhole Soft Bra in Carbon
I recommend this product
Age Range
45-54
Size Purchased
M+
I usually wear
  • 36
Rated 5 out of 5
Review posted

Love this bra!

My favorite bra ever! Just the right amount of coverage and support in an irritant free material. And the keyhole relieves a bit of the sweat accumulation I normally struggle with.

Loading...
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Comfort
Rated 2 on a scale of minus 2 to 2, where minus 2 is Lacking, 0 is Just Right and 2 is Dreamy
Support
Rated 0 on a scale of minus 2 to 2, where minus 2 is Not enough, 0 is Solid Support and 2 is Very Supportive
Was this helpful?

More styles to love

Get 20% off your first order!

Sign up to receive special offers, new releases, and more

© Copyright 2025 Subset
Accessibility
Subset footer brand mark Terms & Conditions
Accessibility Terms & Conditions Privacy Policy
Get on the Waitlist
SALE Knickey Keyhole Bralette
Cart (0)

Your cart is empty

Explore our planet-friendly innerwear collection and make your cart [and your body] happy

Women's UnderwearWomen's Underwear BrasBras Men's UnderwearMen's Underwear
Free Returns Free Returns
Carbon-neutral shipping Carbon-neutral shipping
Easy Exchanges Easy Exchanges
Shop All Products Free Shipping on U.S. Orders Over $75