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Shop best sellersShipping - Costs, International
Returns - Policies, Process
Fit Guide - Bra Sizing 101, Underwear Sizing, Try-on Tips, Sister Sizing
Product Info - Ethics & Sustainability, Fabric & Design, Wear & Care
Afterpay - Make it yours. Pay a bit now, the rest later. Always interest-free.
Shop Pay - Get what you want now, pay in 4 or more flexible payments
Gifts - Gift Cards
Standard Shipping
Expedited Shipping
Where’s my order?
Note that orders ship within 1-2 business days after being placed.
After your order has shipped, you’ll receive an email confirmation with the tracking number. Please note that your tracking number may take 1-2 business days to become active, and USPS orders may experience delays.
How long will it take to receive my order?
Orders typically ship within 1-2 business days after they’ve been placed. Friday afternoon and weekend orders typically ship out on Mondays. For standard shipping, orders within the continental U.S. should arrive within 5-7 business days. For those of us in a hurry, rush shipping should arrive within 2-3 business days, and overnight should arrive in 1-2 business days. Overnight orders must be placed before 12pm to ship out same day.
International orders should arrive within 7-10 business days.
To note, around holidays / holiday weekends, our order fulfillment times may be slightly delayed given order volumes.
My tracking # hasn’t updated in a couple days. What’s going on?
Don’t fret! Your tracking number may take 1-2 business days to update from pre-shipment status.
My tracking # says the package was delivered, but I can’t find it anywhere. What should I do?
International Shipping
Return Policy and Process
You can request a return or exchange up to 30 days after your order was placed. All returns must be unwashed, unworn and undamaged. They’re intimates after all 😉
Click here to start a return >
We offer free exchanges and returns to store credit. For refunds to your original payment, we have a $5 restocking fee to help support the many people in our supply chain. You’ll spot this deducted from the balance of your refund once we’ve received and clicked "good to go!" on your return.
Please note,
Can I return an internationally shipped order?
Items purchased through Matches Fashion are only returnable through their website. If an international order is placed through Negative’s site, it is the responsibility of the customer to return the item for either refund or store credit. Please note, international orders are not eligible for direct exchange.
Underwire Bras
Start with the size you currently wear. If you generally like the fit, try that size in Negative first - if it’s not right, we offer free returns for store credit and free exchanges. We will do as much back and forth needed to find you a style/size you love!
Non-Wire Bras
Please see our size conversion chart below:

If you don’t like the way your current bra size fits, check out our Try-On Tips below or shoot us a note at hello@negativeunderwear.com to diagnose the issue. Our fit specialists know their stuff and love to recommend solutions :)
Underwear/Apparel
For underwear, loungewear, and sleepwear, our sizing runs as follows:
XS = dress sizes 0-2
S = dress sizes 2-4
M = dress sizes 6-8
L = dress sizes 10-12
XL = dress sizes 12-14
XXL = dress sizes 16-18
If you’re more well-endowed, or prefer a looser, more forgiving fit, we suggest you size up for more coverage.
In between sizes or just unsure? Our fit specialists know their stuff: hello@negativeunderwear.com
Try-On Tips
All styles: Our items go directly on skin (they’re intimates, after all!) so please refrain from trying on with self-tanner, lotion, oil or fragrance on your skin. When it comes to something delicate, best to play it clean until you’re 100% sure you’re keeping it - for all of our sakes ;)
Trying on a Bra:
Underwear + Bodysuits + Swim: Please try on all underwear, bodysuits, and one pieces over top of your own underwear or pair of tights. We don’t want to wear someone else’s underwear and would guess that you don’t either. Enough said.
If you’d like personalized fit tips, advice or suggestions, email hello@negativeunderwear.com - our fit specialists are experts at sizing help, diagnosing issues and recommending solutions :)
What size should I try next / Sister Sizes!
No worries! Finding the perfect bra fit online may take a few tries, but we are here to help! Email hello@negativeunderwear.com for advice or suggestions. If you’d like to diagnose yourself, below are some suggestions:
Underwire bra sizing works on a diagonal sliding scale, which basically means that the actual underwire used in a 36B is the exact same wire in a 34C, is the exact same wire in a 32D. Or, to go in the opposite direction, the wire used in a 32DD is the exact same wire in a 34D, is the exact same wire in a 36C. For real though!
Takeaway: if you’ve always worn a 36C (example) and never felt like the fit was great (band rides up, straps dig in), you might consider trying a 34D, starting on the loosest hook, and see if you actually prefer how it fits and feels. Bra expert rule of thumb: a snug band = more support; a loose band = straps that will dig.
Our sister size chart below shows which bra sizes listed share the same wire.
| 32 | 34 | 36 | 38 | 40 |
| 32B | 34A | |||
| 32C | 34B | 36A | ||
| 32D | 34C | 36B | ||
| 32DD | 34D | 36C | 38B | |
| 32DDD | 34DD | 36D | 38C | 40B |
| 32DDDD | 34DDD | 36DD | 38D | 40C |
| 34DDDD | 36DDD | 38DD | 40D |
Ethics & Sustainability
As a small business, we spend a lot of time with our factories and believe it's important to do good business while we grow our business. Our team goes to our mills and factories seasonally, while third party auditors stop by in between.
Sourcing: All of our fabrics are sourced from OEKO-TEX certified mills and meet the strictest RSL (Restricted Substance List) standards, meaning they have been tested and deemed free of any harmful substances or chemicals. Our bras, underwear, and Whipped collection are sourced from luxury mills in Europe, many of which have been long-standing experts in the world of lingerie. In terms of sustainability, our primary supplier is one of the most certified in the industry with the following certifications: ISO 9001 (quality management), ISO 14001 (environmental management) and ISO 50001 (energy management), 3 OEKO-TEX certificates including STeP (Sustainable Textile & Leather Production) a certification system for environmentally friendly and socially responsible production facilities. Our Supreme Sleepwear fabric is sourced from Korea, and also adheres to the strictest dye regulations, RSL standards, and follows the OEKO-TEX Standard 100.
Manufacturing: We manufacture our collection at two top tier factories in China - both practicing labor and environmental standards we can be proud of. Sustainable practices range from waste reduction and recycling, to energy saving equipment (30-40% of energy consumption is offset by solar), and water-saving machines resulting in 90% reduction in water consumption annually. Our factories are members of Sedex, one of the world’s leading ethical trade organizations aiming to improve ethical and responsible business practices in global supply chains. In addition, our primary factory is Bluesign certified, an independent verifier that ensures worker safety, responsibility to the environment, and consumer safety (textiles are free of harmful substances).
Packaging: We ship the majority of our orders in polymailers which can be recycled. Larger orders ship in recyclable cardboard boxes. For hygienic purposes, our products are individually packaged in silver packs which can be ground into tiny pellets which form the raw material to manufacture plastic products (lumped into the #7 recycling group) We suggest putting them with your co-mingled or plastic containers. We are actively working on improving our packaging eco-system to be even friendlier to the Earth. Stay tuned for improvements to come :)
Fabric & Design
Before Negative even had a name we spent four years researching lingerie - trying on every bra and pair of underwear on the island of Manhattan, spending hours in fitting rooms (not the most fun, but someone had to do it!). We scoured the world to determine every detail - meeting with mills and manufacturers who’ve made lingerie longer than we’ve been alive. We didn’t stop until we’d found the best of the best - every component part considered, from the elastics to the hook & eyes.
Wear & Care
All of our materials are super luxe. They’re not so delicate that you can’t wear them in your daily rotation (because then what would be the point - right?!) but when it comes to wear + care - like with any nice garment - the more delicate you treat them, the longer they’ll last.
Wear: Bras need room to breathe (who knew!) It’s best to rotate them every other day or so to give the elastics time to readjust. Our rule of thumb: keep a handful of your favorite bras in rotation - even buy duplicates of your go-to pieces. More cup to support? More bras in your drawer :) With underwear ... listen to your mom + change it daily. End of story.
Care: Underwear, Whipped, Club, Supreme, and Island can be machine washed cold/delicate and laid flat to dry. Bras should be hand washed in cold water, with delicate detergent. Yea it’s annoying, but so is cardio. Wires do pop in machines (sometimes in as little as one wash!) and Tide frays fine fabrics. We promise it’s worth the effort. Swim should be hand washed in cold water and laid flat to dry.
Replenish: Unlined, underwire bras have a shelf-life of about 12 months with good wear and care. Sure, most of us still have an old stretched out bra from high-school (yikes), but replacing your bras yearly is best practice - just like you would your favorite white tees or your go-to jeans. Trust us, your girls will thank you and your drawer will be infinitely less embarrassing.
With underwear - the restock cycle is about the same - 12ish months. If it’s fraying, stained, stretched out, or has holes... well, that’s probably enough said. Our philosophy? Out with the old, in with the new - bc why hold on to old underwear?
What is Afterpay?
Afterpay gives shoppers the flexibility to pay 25% today and split their purchase into 4 interest-free payments, due every 2 weeks. Full eligibility criteria available at www.afterpay.com. It’s already available online, and now in participating doors.
How does Afterpay work?
When customers are ready to check out at participating retailers, they select Afterpay as their payment method. The customer pays 25% of the purchase total today. Afterpay settles with the retailer upfront. The customer then owes the remaining interest-free payments to Afterpay, which are automatically debited from their account every two weeks.
Zero Interest and No Fees when you pay on time
Afterpay does not charge interest on a customer’s purchase. There are no late fees when payments are made on time. If a customer misses a payment, they may be charged a late fee. They should refer to their Afterpay Installment Agreement for full terms and to learn more.
Who can sign up for Afterpay?
Introduce and explain Afterpay equally to all customers who express interest.
To sign up for Afterpay, certain eligibility requirements apply, including:
Additional requirements can be found on www.afterpay.com
Easy Sign Up and Instant Approval Decision
It’s free to create an account and Sign up for Afterpay. Afterpay works with Visa, MasterCard, andAmerican Express cards (debit or credit).
Your first payment is due at checkout. The remaining payments are automatically charged to your card saved on Shop Pay based on the payment plan you chose. Don’t worry, you’ll get an email reminder before each payment to remind you.
Rates from 0%-36% APR. Payment options through Shop Pay Installments, are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers https://www.affirm.com/license
Orders placed on the Shop App can be tracked via the Shop app. For any questions regarding the Shop App please see the Shop Help Center.
Negative gift cards can be purchased here. Our gift cards are delivered immediately and electronically to the email provided. Gift card emails contain unique gift code links that can be copied directly into the “gift card” section at checkout. If you have any questions about ordering, sizing or styles, our gifting gurus would be happy to make some recommendations and find the perfect gift: hello@negativeunderwear.com
When will my gift card expire?
Your Negative Gift Card will never expire - but, you know, there’s no time like the present ;)
Negative Underwear is committed to ensuring our website is accessible and navigable to everyone on desktop and mobile. Our commitment to accessibility is ongoing, and we will continue to both assess and make improvements to our online experience in an effort to create a user-friendly experience for all consumers.
If you are experiencing any difficulty navigating our site or have suggestions on how we can do better, please send an email to hello@negativeunderwear.com with the subject line “Accessibility.”