Material
The Coreline is made from 100% heavyweight cotton with a plaid, long-sleeve design.
Explore with top rollers, duffels & packs.
Alpex
Flannel shirt
Details & specs ↘Alpex heavyweight cotton flannel with a preserved body-measurement size chart.
Eligible return or exchange requests must be submitted within 45 days of the order date. Items must be new and unused with original packaging, tags, and accessories. General change-of-mind returns are not accepted. Customers cover return shipping for size exchanges; Alpine Extreme covers approved returns caused by an incorrect, damaged, or defective item. See the full Return & Refund Policy for exclusions and refund timing.
Free standard shipping is available to most addresses worldwide. Availability, delivery estimates, and any expedited charges depend on the destination and order. International customers are responsible for applicable duties, tariffs, or customs fees.
In the field
A heavyweight 100% cotton plaid long-sleeve flannel shirt presented for spring and fall layering, workshop use, and everyday wear.
The Coreline is made from 100% heavyweight cotton with a plaid, long-sleeve design.
Designed for spring and fall, including workshop, on-the-move, and everyday wear.
Use the preserved men’s body-measurement chart; it is not a garment-dimension or variant-specific chart.
The Coreline Flannel Shirt is built from 100% heavyweight cotton—no shortcuts, no weak seams. It’s a shirt that carries weight and presence, locking in warmth without losing mobility. The plaid lines are bold and exact, cut clean across a fabric that stands up to the grind. This isn’t a lightweight layer—it’s the backbone piece that holds steady through long days and sharp nights.
Dialed for spring and fall when temperatures shift hard and thin shirts collapse. Wear it in the workshop, on the move, or through everyday chaos where durability matters more than polish. If you need a shirt that can take hits and keep shape, Coreline is it.
Solid build. Zero compromise. Coreline: the shirt that doesn’t fold.
| Size | Chest (in) | Chest (cm) | Waist (in) | Waist (cm) | Sleeve* (in) | Sleeve* (cm) |
|---|---|---|---|---|---|---|
| XS | 32–34 | 81–86 | 26–28 | 66–71 | 31–32 | 79–81 |
| S | 35–37 | 89–94 | 29–31 | 74–79 | 32–33 | 81–84 |
| M | 38–40 | 97–102 | 32–34 | 81–86 | 33–34 | 84–86 |
| L | 41–43 | 104–109 | 35–37 | 89–94 | 34–35 | 86–89 |
| XL | 44–46 | 112–117 | 38–40 | 97–102 | 35–36 | 89–91 |
| 2XL | 47–49 | 119–124 | 41–43 | 104–109 | 36–37 | 91–94 |
| 3XL | 50–53 | 127–135 | 44–47 | 112–119 | 37–38 | 94–97 |
| 4XL | 54–57 | 137–145 | 48–51 | 122–130 | 38–39 | 97–99 |
Email [email protected] or use our contact form.
Free standard shipping is available to most addresses worldwide. Availability, delivery estimates, and any expedited charges depend on the destination and order. International duties, tariffs, and customs fees remain the customer’s responsibility. See our Shipping Policy for details.
Eligible return or exchange requests must be submitted within 45 days of the order date. Items must be new and unused with original packaging, tags, and accessories. General change-of-mind returns are not accepted. Return-shipping responsibility depends on the reason for the return. See the full Return & Refund Policy for exclusions and refund timing.
Orders are typically processed within 2–5 business days. Most standard shipments arrive within 7–14 business days after shipping, depending on destination and carrier conditions. Delivery estimates are not guaranteed.
Yes. Tracking details are emailed after shipment. You can also check order status with your order information through our order-tracking page.
Email [email protected] or submit the form on our support page. Report delivery issues within 60 days of the order date so carrier information is still available.
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