Your search for "flannel" revealed the following:
Cotton - Designer Plaid - Red Black
$22.50 CAD
Cotton - Designer Plaid - Blue Green
$22.50 CAD
Cotton - Designer Plaid - White Black
$22.50 CAD
Cotton - Loomcraft Plaid - Mustard
$32.75 CAD
$24.50 CAD
Wool Cashmere - Suiting - Plaid - Assorted
$31.50 CAD
Cashmerette - Vernon Shirt - 0-16
$32.00 CAD
Wool - Suiting - Plaid - Olive
$27.00 CAD
Fableism - Cotton - Arcade Wovens - Assorted
$22.75 CAD
Recycled Poly - Brushed Plaid Knit - Forest
$23.50 CAD
Wool Cashmere - Suiting - Plaid - Navy Blue
$31.50 CAD
Merino Wool - Suiting - Plaid Charcoal
$27.00 CAD