Exhibit 99.1

DESTINATION MATERNITY REPORTS THIRD QUARTER AND FIRST

NINE MONTHS FISCAL 2017 RESULTS

Moorestown, NJ, December 7, 2017 – Destination Maternity Corporation (NASDAQ: DEST), the world’s leading maternity apparel retailer, today announced financial results for the third quarter and first nine months of fiscal 2017 ended October 28, 2017 compared to the third quarter and first nine months of fiscal 2016 ended October 29, 2016.

Third Quarter Fiscal 2017 Financial Results

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First Nine Months of Fiscal 2017 Financial Results (39 weeks ended October 28, 2017)

Other Financial Information

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Commentary

Allen Weinstein, interim Chief Executive Officer stated, “Although we are not fully satisfied with our financial results, the third quarter was a productive period for our Company. After my initial few months of observations, I feel confident that we have many opportunities to improve our operations and performance, with the benefit of a strong and talented team and a solid infrastructure on which to grow. We also have a strong foundation to build on in our e-commerce business, with e-commerce sales rising over 54% in the quarter and nearly 34% year to date, and with increased momentum in the fourth quarter to date bolstered by record online sales during the Thanksgiving through Cyber Monday period. As to stores, although not yet positive, in the fourth quarter to date we have seen our comparable store sales improve 190 basis points to down 6.4%, with improving traffic. We also remain on track to achieve the approximately $10 million in annualized cost savings commencing in fiscal 2018 as we announced earlier in the quarter. In short, although we have much to do, we are moving in the right direction.”

Barry Erdos, Chairman of the Board, commented, “As a Board, we are encouraged by the progress Allen and the team have made in the past several months, in particular the great progress on e-commerce. In addition to supporting management over the last few months, the Board has been working diligently on key governance matters. First, as to our ongoing search for a new Chief Executive Officer, we are working hard to find the right leader who will build on our current momentum and we expect to continue the search process into the new year. Second, as discussed previously, our Board has been actively evaluating its composition and size. After significant study and engagement with stockholders, the Board has decided to add multiple additional Board members, with a focus on adding diverse individuals who possess additional skills and experience that will help further our turnaround and growth. Our Board is in the process of vetting many qualified individuals and we expect to announce new appointments shortly.”

Conference Call Information

As announced previously, the Company will hold a conference call today at 9:00 a.m. Eastern Time, regarding the Company’s third quarter fiscal 2017 financial results. Interested parties can participate in this conference call by dialing (800) 219-6970 in the United States and Canada or (574) 990-1028 outside of the United States and Canada. Please call ten minutes prior to 9:00 a.m. Eastern Time. The conference call (listen only) will also be available on the investor section of the Company’s website at http://investor.destinationmaternity.com. The passcode for the conference call is 7488866. In the event that you are unable to participate in the call, a replay will be available at 12:00 p.m. Eastern Time on Thursday, December 7, 2017 through 12:00 p.m. Eastern Time Thursday, December 14, 2017 by calling (855) 859-2056 in the United States and Canada or (404) 537-3406 outside of the United States and Canada. The passcode for the replay is 7488866.

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About Destination Maternity

Destination Maternity Corporation is the world’s largest designer and retailer of maternity apparel. As of October 28, 2017 Destination Maternity operates 1,147 retail locations in the United States, Canada and Puerto Rico, including 501 stores, predominantly under the trade names Motherhood Maternity^®, A Pea in the Pod^® and Destination Maternity^®, and 646 leased department locations. The Company also sells merchandise on the web primarily through its brand-specific websites, motherhood.com and apeainthepod.com, as well as through its destinationmaternity.com website. Destination Maternity has international store franchise and product supply relationships in the Middle East, South Korea, Mexico, Israel and India. As of October 28, 2017 Destination Maternity has 208 international franchised locations, including 16 standalone stores operated under one of the Company’s nameplates and 192 shop-in-shop locations.

Reconciliation of Non-GAAP Financial Measures

This press release and the accompanying financial tables contain non-GAAP financial measures within the meaning of the SEC’s Regulation G, including 1) Adjusted net income (loss), 2) Adjusted net income (loss) per share – diluted, 3) Adjusted EBITDA, 4) Adjusted EBITDA before other charges and effect of change in accounting principle, 5) Adjusted EBITDA margin, and 6) Adjusted EBITDA margin before other charges and effect of change in accounting principle. In the accompanying financial tables, the Company has provided reconciliations of these non-GAAP financial measures to the most directly comparable GAAP financial measures. The Company’s management believes that each of these non-GAAP financial measures provides useful information about the Company’s results of operations and/or financial position to both investors and management. Each non-GAAP financial measure is provided because management believes it is an important measure of financial performance used in the retail industry to measure operating results, to determine the value of companies within the industry and to define standards for borrowing from institutional lenders. The Company uses each of these non-GAAP financial measures as a measure of the performance of the Company. In addition, certain of the Company’s cash and equity incentive compensation plans are based on our level of achievement of Adjusted EBITDA before other charges and effect of change in accounting principle. The Company provides these various non-GAAP financial measures to investors to assist them in performing their analysis of its historical operating results. Each of these non-GAAP financial measures reflects a measure of the Company’s operating results before consideration of certain charges and consequently, none of these measures should be construed as an alternative to net income (loss) or operating income (loss) as an indicator of the Company’s operating performance, as determined in accordance with generally accepted accounting principles. The Company may calculate each of these non-GAAP financial measures differently than other companies.

Forward-Looking Statements

The Company cautions that any forward-looking statements (as such term is defined in the Private Securities Litigation Reform Act of 1995) contained in this press release or made from time to time by management of the Company, including those regarding earnings, net sales, comparable sales, other results of operations, liquidity and financial condition, and various business initiatives, involve risks and uncertainties, and are subject to change based on various important factors. The following factors, among others, in some cases have affected and in the future could affect the Company’s financial performance and actual results and could cause actual results to differ materially from those expressed or implied in any such forward-looking statements: the strength or weakness of the retail industry in general and of apparel purchases in particular, our ability to successfully manage

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our various business initiatives, the success of our international business and its expansion, our ability to successfully manage and retain our leased department and international franchise relationships and marketing partnerships, future sales trends in our various sales channels, unusual weather patterns, changes in consumer spending patterns, raw material price increases, overall economic conditions and other factors affecting consumer confidence, demographics and other macroeconomic factors that may impact the level of spending for apparel (such as fluctuations in pregnancy rates and birth rates), expense savings initiatives, our ability to anticipate and respond to fashion trends and consumer preferences, unanticipated fluctuations in our operating results, the impact of competition and fluctuations in the price, availability and quality of raw materials and contracted products, availability of suitable store locations, continued availability of capital and financing, our ability to hire, develop and retain senior management and sales associates, our ability to develop and source merchandise, our ability to receive production from foreign sources on a timely basis, our compliance with applicable financial and other covenants under our financing arrangements, potential debt prepayments, the trading liquidity of our common stock, changes in market interest rates, our compliance with certain tax incentive and abatement programs, war or acts of terrorism and other factors set forth in the Company’s periodic filings with the U.S. Securities and Exchange Commission (the “SEC”), or in materials incorporated therein by reference. Although it is believed that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct and persons reading this announcement are therefore cautioned not to place undue reliance on these forward-looking statements which speak only as at the date of this announcement. The Company assumes no obligation to update or revise the information contained in this announcement (whether as a result of new information, future events or otherwise), except as required by applicable law.

– Financial Tables to Follow –

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DESTINATION MATERNITY CORPORATION AND SUBSIDIARIES

Consolidated Statements of Operations

(in thousands, except percentages and per share data)

(unaudited)

DESTINATION MATERNITY CORPORATION AND SUBSIDIARIES

Condensed Consolidated Balance Sheets

(in thousands)

(unaudited)

Selected Consolidated Balance Sheet Data

(in thousands)

(unaudited)

DESTINATION MATERNITY CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

DESTINATION MATERNITY CORPORATION AND SUBSIDIARIES

Supplemental Financial Information

Reconciliation of Net Income (Loss) to Adjusted EBITDA⁽¹⁾

and Adjusted EBITDA Before Other Charges and Effect of Change in Accounting Principle,

and Operating Income (Loss) Margin to Adjusted EBITDA Margin

and Adjusted EBITDA Margin Before Other Charges and Effect of Change in Accounting Principle

(in thousands, except percentages)

(unaudited)

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