Very classy!

http://www.eshopone.com/smx/pinstripe-suits/kothello/

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Note added at 8 mins (2007-06-08 23:20:19 GMT)
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http://www.walmart.com/catalog/product.do?product_id=4660580

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Note added at 10 mins (2007-06-08 23:21:40 GMT)
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http://china-suit.chinese-suppliers.com/a_pinstripe_suit.htm

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Note added at 52 mins (2007-06-09 00:03:51 GMT)
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Resultados 1 - 10 de aproximadamente 56.600 para "pinstriped suit" (0,38 segundos)

Resultados 1 - 10 de aproximadamente 50.000 para "pin-striped suit" (0,20 segundos)

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Note added at 59 mins (2007-06-09 00:10:46 GMT)
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After agreeing with Susy I decided to check more carefully and since as translators we should set the example in terms of spelling, I found at
http://www.websters-online-dictionary.org/definition/pinstri...
risca de giz: pinstripe
Pinstripe
Adjective
1. Having very thin stripes.

http://www.websters-online-dictionary.org/definition/pinstri...
Pinstriped
Adjective
1. Having very thin stripes.

At the American Heritage: http://www.bartleby.com/61/94/P0319400.html
The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.

pinstripe

SYLLABICATION: pin·stripe
PRONUNCIATION: pnstrp
VARIANT FORMS: also pin stripe
NOUN: 1. A very thin stripe, especially on a fabric. 2a. A fabric with very thin stripes, often used for suits. b. A suit made of such fabric. Often used in the plural.
OTHER FORMS: pinstriped —ADJECTIVE