Desi’s 49er Plaid Shirt Jacket

Vintage Red Plaid Jacket
Vintage Red Plaid Jacket
Vintage Pendleton Jacket in a similar style to Desi's Jacket
Vintage Pendleton 49er Jacket in a similar style to Desi’s Jacket

Not an exact match but vintage and similar in style jackets can be found in the vintage clothing section on eBay See this one on eBay

Pendleton 49er shirt jacket
Pendleton 49er shirt jacket

If you are looking for a vintage Pendleton 49er jacket check the label to tell you whether it is a man’s size or woman’s, the womenswear label is always white, and the menswear label is blue. Later era Pendleton labels have the Woolmark symbol, which was not added until the mid 1960s
See Pendleton 49er jackets on eBayrickypladjacket2