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The Filson Men’s Deer Island Jac-Shirt is a hybrid layer for in-between types of weather. A heavy shirt or a light jacket? It’s basically both and really depends on your mood for the day. Throw it over a tee, use it as a jacket or utilize as a midlayer. The 100% brushed cotton twill fabric is soft, durable, and warming. Handwarmer pockets at the sides toast up the hands when you’re out for a walk, while military-grade melamine buttons close up the front.
FEATURES of the Filson Men’s Deer Island Jac-Shirt
- Button-close front, pocket flaps and adjustable cuffs
- Vertical handwarmer pockets at side-seams
- Side-slit at waist for freedom of motion
Fabric Details:
- 100% Cotton
Filson Mens Jackets
| SIZE | X-Small | Small | Medium | Large | X-Large | 2X-Large | 3X-Large |
| Numeric Sizing | 34 – 36″ | 37 – 39″ | 40 – 42″ | 43 – 45″ | 46 – 48″ | 49 – 51″ | 52 – 54 |
| Chest | 33.5 – 36.5″ | 36.5 – 39.5″ | 39.5 – 43.5″ | 43.5 – 45.5″ | 45.5 – 49.5″ | 49.5 – 51.5″ | 51.5 – 53.5″ |
| Waist | 27.5 – 30.5″ | 30.5 – 33.5″ | 33.5 – 36.5″ | 36.5 – 39.5″ | 39.5 – 43.5″ | 43.5 – 46.5″ | 46.5 – 48.5″ |
| Hip | 33.5 – 36.5″ | 36.5 – 39.5″ | 39.5 – 43.5″ | 43.5 – 45.5″ | 45.5 – 49.5″ | 49.5 – 51.5″ | 51.5 – 53.5″ |
| Neck | 13.5 – 14″ | 14.5 – 15″ | 15.5 – 16″ | 16.5 – 17″ | 17.5 – 18″ | 18 – 18.5″ | 18.5 – 19″ |
| Sleeve | 32.5 – 33.5″ | 33.25 – 34.25″ | 34 – 35″ | 34.75 – 35.75″ | 35.5 – 36.5″ | 36.25 – 37.25″ | 37 – 38″ |
HOW to MEASURE
Chest: Measure around the fullest part of the chest, keeping the tape parallel to the floor.
Waist: Measure around the natural part of the waist, often the narrowest part of the waist.
Hip: Stand with feet together and measure around the fullest point of the hip.
Sleeve: Measure from center back.
FILSON FIT GUIDE
Our X-Long sizes are for you if regular-sized shirts fit in the chest and shoulders, but the body length and sleeves are often too short.
X-Long Body Length: 1.5″ longer than Regular length (Sizes M-XXL)
X-Long Sleeve Length: 1.5″ longer than Regular length (Sizes M-XXL)














John Smith –
The Filson Men’s Deer Island Jac-Shirt is a fantastic blend of durability and style. The material feels premium, and it’s perfect for outdoor activities during the cooler months. Highly recommend!
Michael Johnson –
I’ve been looking for a versatile shirt jacket, and this one fits the bill. The craftsmanship is top-notch, and it’s warm without being bulky. The sizing was spot on for me.
David Brown –
Great shirt-jacket for layering. The design is classic and functional, with plenty of pockets. However, it’s a bit pricey for what it offers. Still, I’m satisfied with the purchase.
Robert Wilson –
The Filson Jac-Shirt is sturdy and well-made, as expected from the brand. It’s ideal for casual wear or outdoor adventures. The only downside is that it’s a bit heavy.
William Martinez –
I love the look and feel of this shirt. It’s rugged yet stylish and works well for both city outings and wilderness trips. The price is steep, but you get what you pay for.
James Anderson –
This Jac-Shirt is a solid piece of outerwear. It’s warm, durable, and looks great. The only issue I have is that it’s a bit stiff initially, but it breaks in nicely over time.
Daniel Taylor –
The Filson Deer Island Jac-Shirt is a winner. It’s well-constructed, practical, and has a timeless design. It’s worth the investment if you’re looking for something that lasts.
Christopher Thomas –
I’m impressed with the quality of this shirt. It’s perfect for layering in colder weather, and the pockets are very handy. The only drawback is the heaviness, but it’s manageable.