what is the name of the clothing manufacture using Norwegian flag as logo

Napapijri uses the Norwegian flag as its logo. The flag also appears
on many Napapijri garments.

"NAPAPIJRI, pronounced with a silent 'J', means Artic Polar Circle in
Finnish Language. Napapijri is also the name of a small village
located on the Polar Circle.

NORWEGIAN FLAG: The Norwegian flag appears on many of the garments as
a tribute to the Norwegian explorers that first traveled to Polar
Regions by foot and by dog sled over 100 years ago. Permission to use
the Norwegian flag as a Napapijri logo was happily granted by the King
of Norway, Harald the 5th."

Napapijri USA
http://www.napapijriusa.com/about.html

Google Web Search: napapijri logo flag
://www.google.com/search?hl=en&ie=UTF-8&q=napapijri+logo+flag

I hope this is precisely the information you're looking for. If it is
not, please request clarification; I'll gladly offer further
assistance before you rate my answer.

Best regards,
pinkfreud

First class answer.

Napapijri is just one of several clothing manufacturers that use a
Norwegian flag as a part of their logo, both on their products and in
advertising.  Both Devold
(http://www.devold.no/Outdoor/English/Heritage.asp) and Dale
(http://www.dale.no/dale/don/home.nsf/frameset/sport_main2?opendocument)
put a small embroidered patch on their sweaters and hats - this patch
carries a Norwegian flag and their brand name.  There are several
others using the flag in a similar matter.