Exhibit 99.1
                                 PROMISSORY NOTE


February 13, 2001                                            U.S. $500,000.00
New York, New York


                       THE LANGER BIOMECHANICS GROUP, INC.
                                 PROMISSORY NOTE
        DUE AUGUST 31, 2001, SUBJECT TO PREPAYMENT ON CERTAIN CONDITIONS


      FOR VALUE RECEIVED, the undersigned,  THE LANGER BIOMECHANICS GROUP, INC.,
a New York Corporation ("Payor"),  having its principal place of business at 450
Commack Rd., Deer Park, New York 11729,  hereby  promises to pay to the order of
ANDREW H. MEYERS ("Payee"), having an address at 31 The Birches, Roslyn Estates,
New York 11576 on the Payment Date (as defined below), in immediately  available
funds, the sum of Five Hundred Thousand  Dollars  ($500,000),  together with all
accrued  and  unpaid  interest  thereon  from the date  hereof at prime rate (as
reported in the Wall Street  Journal from time to time ("Prime  Rate")) plus 1%,
payable  monthly in arrears;  provided,  however,  that upon the  occurrence and
continuance  of an Event of Default (as  hereinafter  defined),  interest  shall
accrue at the Prime Rate plus six (6%) percent per annum.  All amounts  referred
to herein are  expressed  and  payable in United  States  dollars.  This Note is
subject to the following additional terms.

      1.  Payment.  All  payments  hereunder  shall be payable at the offices of
Payee,  or at such  other  place as Payee  may from  time to time  designate  by
written notice to Payor.  All payments  hereunder  shall be applied first to any
outstanding  amounts  specified in paragraph 12 hereof,  then to all accrued and
unpaid  interest  hereunder,  and  then  to  the  principal  amount  outstanding
hereunder.

          For purposes of this Note, the term "Payment Date" shall mean the date
which is the  earlier of (i) August 31,  2001,  or (ii) the date of a closing of
any debt financing with a commercial lending institution in the aggregate amount
of at least $1,000,000 by the Payor.

      2.  Absolute  Obligation.  No provision of this Note shall alter or impair
the obligation of the Company,  which is absolute and unconditional,  to pay the
principal  of, and  interest  on,  this Note at the time,  place and rate herein
prescribed.

      3. Events of Default. If one or more of the following described "Events of
Default" shall occur:

            (a) The Payor shall  default in the payment,  when due, of principal
or interest on this Note; or




            (b) The Payor shall (1) become  insolvent;  (2) admit in writing its
inability to pay its debts generally as they mature;  (3) make an assignment for
the benefit of creditors or commence  proceedings  for its  dissolution;  or (4)
apply for or consent to the appointment of a trustee, liquidator or receiver for
all of its or for a substantial part of its property or business; or

            (c)   Bankruptcy,   reorganization,    insolvency   or   liquidation
proceedings or other  proceedings for relief under any bankruptcy law or any law
for the relief of debtors  shall be  instituted  by or against the Payor and, if
instituted  against the Payor,  shall not be  dismissed  within  forty (45) days
after such  institution,  or the Payor shall by any action or answer approve of,
consent  to,  or  acquiesce  in any  such  proceedings  or  admit  the  material
allegations of, or default in answering a petition filed in any such proceeding;

then,  or at any  time  thereafter,  and as long as such  Event  of  Default  is
continuing unless such Event of Default shall have been waived in writing by the
Payee  (which  waiver  shall  not be  deemed  to be a waiver  of any  subsequent
default) at the option of the Payee and in the Payee's sole discretion,  (i) all
amounts of principal  and accrued  interest  payable  hereunder,  together  with
collection costs (including all attorneys' fees and disbursements), shall become
immediately due and payable,  without presentment,  demand, protest or notice of
any kind, all of which are hereby  expressly  waived,  anything herein or in any
note or other instruments  contained to the contrary  notwithstanding,  (ii) the
principal  sum of, and any accrued  interest on, this Note shall be  irrevocably
and unconditionally payable by Payor, without offset,  discount,  defense, claim
or counterclaim of any nature, and (iii) the Payee may immediately,  and without
expiration  of any period of grace  other  than as  contained  in this  Section,
enforce any and all of the Payee's  rights and remedies  provided  herein or any
other rights or remedies afforded by law.

      4.  Applicable  Law and  Jurisdiction.  This Note shall be governed by and
interpreted under the laws of the State of New York applicable to contracts made
and  to be  performed  therein,  without  giving  effect  to the  principles  of
conflicts of law. Payor  irrevocably  consents to the service of process arising
out of any of the aforementioned  courts in any such action or proceeding by the
mailing of copies thereof by postage prepaid certified or registered first-class
mail,  return receipt  requested,  to Payor. The foregoing,  however,  shall not
limit the right of Payee to service of process in any other manner  permitted by
law or to commence  any legal  action or  proceeding  or to obtain  execution of
judgment in any  appropriate  jurisdiction.  In the event of litigation  between
Payee and Payor over any matter  connected  with this Note, the right to a trial
by jury is hereby waived by Payor and Payee.

      5. Further  Assurances.  Payor  hereby  agrees to execute and deliver such
other documents and instruments as may be reasonably requested by Payee in order
to give effect to the intent and purposes of this Note.


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      6. Prepayment. This Note may be prepaid, in whole or in part, at any time,
subject to the provisions  below.  Any prepayment  shall be made at a prepayment
price equal to (i) the amount of principal to be prepaid,  plus (ii) all accrued
and unpaid interest on the amount so prepaid, to the date of prepayment, and any
outstanding amounts specified in paragraph 12 hereof.

      7. No Failure to  Exercise.  No failure on the part of Payee to  exercise,
and no delay in  exercising  any  right  hereunder,  shall  operate  as a waiver
thereof; nor shall any single or partial exercise by Payee of any right preclude
any other or further exercise thereof or the exercise of any other right.

      8.  Amendments.  No amendment,  modification or waiver of any provision of
this  Note,  nor any  consent  to any  departure  by Payor  therefrom,  shall be
effective  unless the same shall be in writing and signed by Payee and then such
waiver or consent shall be effective  only in the specific  instance and for the
specific purpose for which given.

      9. Binding;  Assignment. This Note shall be binding upon the Payor and its
successors and assigns, and the terms hereof shall inure to the benefit of Payee
and  its  heirs,  legal  representatives,   successors  and  permitted  assigns,
including  subsequent holders hereof. The provisions of this Note are severable,
and if any provision shall be held invalid or  unenforceable in whole or in part
in any jurisdiction,  then such invalidity or unenforceability  shall not in any
manner affect such provision in any other jurisdiction or any other provision of
this Note in any jurisdiction.

      10. Notice. Any notice,  request,  demand or other communication permitted
or required  to be given  under this Note shall be in writing,  shall be sent by
one of the following means to the addressee at the address provided above (or at
such  other  address  as shall be  designated  hereunder  by notice to the other
party) and shall be deemed conclusively to have been given: (i) on the first day
following the day timely  deposited  with Federal  Express (or other  equivalent
national  overnight  courier) or United States  Express  Mail,  with the cost of
delivery  prepaid  or for the  account  of the  sender;  (ii) on the  fifth  day
following  the day duly sent by  certified  or  registered  United  States mail,
postage  prepaid  and return  receipt  requested;  or (iii) on the day  actually
received by the addressee when personally delivered.

      11.  Usury  Savings  Clause.   Anything  in  this  Note  to  the  contrary
notwithstanding,  the obligation of the Payor to make payments of interest shall
be subject to the limitation  that payments of interest shall not be required to
be made to the extent that the Payee's  receipt thereof would not be permissible
under the law or laws  applicable to it limiting  rates of interest which may be
charged or collected  by it. Any such amount of interest  which is not paid as a
result of the limitation  referred to in the preceding sentence shall be carried
forward  and paid by the  Payor to the  Payee on the  earliest  date or dates on
which any interest is payable  under this Note and on which the receipt  thereof
is permissible under the laws applicable to the Payee limiting rates of interest
which may be charged or collected by Payee.


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      12. Attorneys' Fees; Expenses.  Payor agrees to pay all costs and expenses
Payee incurs to collect this Note.  This  includes,  subject to any limits under
applicable law,  Payee's  reasonable  attorneys' fees and Payee's legal expenses
whether  or not there is a lawsuit,  including  reasonable  attorneys'  fees and
expenses for bankruptcy  proceedings  (including efforts to modify or vacate any
automatic stay or injunction), and appeals. If not prohibited by applicable law,
Payor also will pay any court costs,  in addition to all other sums  provided by
law.

                                     The Langer Biomechanics Group, Inc.


                                     /s/ Steven Goldstein
                                     Name:    Steven Goldstein
                                     Title:   Vice President


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