Packers sleeve stripes 1981.

Green Bay wore a combination of 3-stripe and 5-stripe sleeves.

9/1/81
http://www.apimages.com/OneUp.aspx?st=k&kw=green%20bay%20packers&showact=results&sort=relevance&prds=10001&intv=None&cfas=__p%2C-1&sh=10&dtebf=12%2F31%2F1981&dteaf=9%2F1%2F1981&kwstyle=or&adte=1341312999&pagez=60&cfasstyle=AND&rids=5493cbee47764c22996b3e11f944568c&dbm=PY2000&page=1&xslt=1&mediatype=Photo

9/13/81
http://www.gettyimages.com/detail/news-photo/atlanta-falcons-running-back-william-andrews-tries-to-get-news-photo/81277366

11/29/81
http://www.apimages.com/OneUp.aspx?st=k&kw=green%20bay%20packers&showact=results&sort=relevance&prds=10001&intv=None&cfas=__p%2C-1&sh=10&dtebf=12%2F31%2F1981&dteaf=9%2F1%2F1981&kwstyle=or&adte=1341312999&pagez=60&cfasstyle=AND&rids=14407ec9c849484a9c8ba9343ea6ac46&dbm=PY2000&page=1&xslt=1&mediatype=Photo

http://www.apimages.com/OneUp.aspx?st=k&kw=green%20bay%20packers&showact=results&sort=relevance&prds=10001&intv=None&cfas=__p%2C-1&sh=10&dtebf=12%2F31%2F1981&dteaf=9%2F1%2F1981&kwstyle=or&adte=1341312999&pagez=60&cfasstyle=AND&rids=ede71382c9b74d98afe80dff53c061b2&dbm=PY2000&page=1&xslt=1&mediatype=Photo

12/20/81
http://www.gettyimages.com/detail/news-photo/linebacker-stan-blinka-of-the-new-york-jets-moves-in-to-news-photo/80032378

Undated publicity shot:

Each of the 3-stripe versions appear to be the 5-stripe patterns with the bottom cut off - as Buffalo, Detroit, and Minnesota did a great deal of at this time.