Terreign Flannel Shirt

The Terreign Flannel Shirt isn't your average flannel.

Built differently from the ground up, this premium overshirt combines rugged durability, sustainable materials and timeless style in one versatile garment. Whether worn as a standalone piece or layered over your favourite Terreign tee, it's designed to become a staple in your wardrobe for years to come.

Crafted from a premium blend of 100% recycled cotton and polyester fibres, the Terreign Flannel Shirt delivers the perfect combination of comfort, structure and durability without compromise. The substantial midweight fabric provides a premium feel that stands apart from thinner alternatives, creating a garment that feels every bit as good as it looks.

This isn't fast fashion. This is a flannel built the Terreign way.

Premium Quality, Everyday Versatility

The Terreign Flannel Shirt has been designed to work wherever life takes you. Whether you're exploring the outdoors, heading into town, travelling or simply relaxing, its versatile design makes it one of the most adaptable pieces in the Terreign collection.

The true oversized fit creates an effortless layered appearance whilst maintaining a structured silhouette that feels premium and intentional.

Wear it open over a T-shirt, buttoned up on cooler days or layered beneath outerwear when temperatures drop. However you style it, the Terreign Flannel Shirt is built to perform.

Unmatched Quality and Construction

Every Terreign Flannel Shirt is crafted using a premium recycled cotton and polyester blend, carefully selected to provide durability, comfort and long-lasting performance.

The midweight construction delivers a substantial, quality feel whilst maintaining all-day comfort. Built to withstand regular wear, the fabric develops character over time whilst retaining the premium finish expected from Terreign.

This is a garment designed to be worn, enjoyed and relied upon for years.

The Perfect Oversized Fit

The Terreign Flannel Shirt features a true oversized fit, carefully designed to create a relaxed and effortless silhouette.

For the intended fit shown in product imagery, we recommend sizing down by one size from your usual Terreign size.

Example:
If you normally wear a Large, we recommend choosing a Medium.

A full size guide is available to help you select your preferred fit.

Attention to Detail

The difference is in the details.

Every aspect of the Terreign Flannel Shirt has been carefully considered, from the premium fabric selection to the finishing touches that elevate it above ordinary flannels.

Features include:

• Fully branded Terreign buttons
• Functional chest pocket detailing
• Premium woven side tags
• Clean, structured construction throughout
• Reinforced stitching in key areas
• Oversized fit designed for layering

No shortcuts. No unnecessary extras. Just quality craftsmanship and thoughtful design.

Sustainable Innovation

At Terreign, we believe great clothing should have a positive impact. That's why the Terreign Flannel Shirt is crafted using recycled materials, helping to reduce waste whilst creating premium garments built to last.

By choosing Terreign, you're supporting responsible production without compromising on quality, comfort or style.

Trusted by Thousands

With over 1,000 five-star reviews, Terreign has built a loyal community of customers who trust the quality, comfort and durability of our garments.

Every garment is designed, finished and dispatched right here in the UK, allowing us to maintain the highest standards whilst providing the service our customers have come to expect.

From the materials we choose to the final product that arrives at your door, every step reflects our commitment to quality, sustainability and customer satisfaction.

Key Features

• True oversized fit for effortless layering
• Premium recycled cotton and polyester blend
• Midweight fabric with a substantial premium feel
• Fully branded Terreign buttons
• Functional chest pocket detailing
• Premium woven side tags
• Clean, structured finish throughout
• Built for everyday wear and long-term durability
• Made using recycled materials
• Designed, finished and dispatched in the UK
• Backed by over 1,000 five-star customer reviews

Care Instructions

To keep your Terreign Flannel Shirt looking its best for years to come, please follow these care recommendations:

• Wash at 30°C – the most sustainable washing temperature and the best option for maintaining the quality and lifespan of your garment
• Wash similar colours together
• Do not tumble dry
• Air dry where possible
• Iron on a low heat if required
• Do not bleach

Please note: During the first few washes, the fabric may naturally develop a slight textured appearance as the material settles. This is completely normal and forms part of the authentic character of the garment. Any small bobbles that may appear will naturally reduce and disappear after several washes as the fabric fully settles.

Following these instructions will help preserve the fit, quality and appearance of your Terreign Flannel Shirt whilst reducing environmental impact.

Size guide