Men's Long Sleeve Plaid Flannel Shirt

Walmart - WHLBF

Exact red and black buffalo plaid pattern match, Vibrant red and black color scheme matches, Long-sleeve button-up shirt style is consistent, Material appears to be flannel, consistent with visual texture, Overall design and form factor align perfectly

L.L.Bean Men's Maine Guide Shirt

L.L.Bean

Exact red and black buffalo check plaid pattern match, Men's button-up shirt style, Thick flannel/wool material appearance matches, Two chest pockets consistent with style, High priority retailer (L.L.Bean official store)

Wool Button Down Shirt

Johnson Woolen Mills

Exact red and black buffalo check plaid pattern match, Men's button-down shirt style, Thick wool material appearance matches, Two chest pockets consistent with style