c. 1970s Frostproof Plaid Flannel Shirt - Size S

A classic vintage Frostproof plaid flannel shirt in a bold red, charcoal, and cream yard-dyed check. Cut from soft, midweight cotton flannel with a traditional button-front silhouette and dual chest pockets. Naturally broken in through years of wear, the fabric has developed a perfect lived-in softness and subtle fading that adds depth and character. An easy, timeless layering piece built for warmth, comfort, and everyday wear.

Frostproof was a Montgomery Ward house brand known for producing durable, well-made workwear and casual staples throughout the mid-to-late 20th century. During the 1970s, cotton flannels like this were everyday essentials—worn for work, weekends, and layered through colder months for their comfort, reliability and ease. Unlike printed plaids, yarn-dyed fabrics retain depth and character over time, aging beautifully with repeated wear.

• Era: c. 1970s.
• Brand: Frostproof.
• Fabric: 100% cotton flannel.
• Color: Red, charcoal, and cream plaid.
• Construction: Yard-dyed plaid with button-front closure.
• Pockets: Two chest pockets with button flaps.
• Fit: Relaxed vintage silhouette.
• Condition: Gently worn with natural fading and softness consistent with age.
• Part of the HOLLY Studio Found Vintage Winter Collection 001: Warm & Well Worn. We recommend gentle cleaning due to the nature of this aged garment.
• This is a one-of-a-kind vintage piece and shows visible signs of wear consistent with age and history. All Found Vintage Release items are final sale.

Fits like a vintage Small. This garment has approximately a 27” back body length, a 15” shoulder, a 19.5” chest, and a 23” sleeve length.