Why These Lined Jeans

The Filson Flannel-Lined Rail Splitter Jeans are the ultimate cold-weather work pant, combining the toughness of raw denim with the warmth of Filson's signature flannel. This rare **Made in USA** pair is constructed from durable **Raw Indigo Denim**, which arrives stiff and dark but will mold to your body and fade uniquely with wear.

Inside, they are fully lined with soft **Alaskan Guide Flannel** (Red/Black check), providing a barrier against freezing temperatures without the bulk of snow pants. Featuring rugged metal hardware, reinforced rear pockets, and a classic straight-leg cut, they are built for the job site, the ranch, or winter chores.

Key Features

• Made in USA: Proudly manufactured in the United States, ensuring superior quality and collectibility.
• Flannel Lined: Lined from waist to hem with warm, breathable cotton flannel.
• Raw Indigo Denim: Unwashed fabric is highly durable and develops a custom patina over time.
• Double-Layer Pockets: Rear pockets are reinforced at the bottom for extra durability.
• Heavy-Duty Hardware: Metal shank button and rivets withstand heavy use.

Sizing & Measurements

These are "Raw" jeans. They are sanforized (pre-shrunk) but may still shrink slightly (approx 3-5%) if washed in hot water. Size 42 fits true to size.

Materials & Care

• Shell: 100% Cotton Raw Denim.
• Lining: 100% Cotton Flannel.
• Care: Wash cold, hang dry to preserve the indigo and prevent shrinkage.

Overview

The Filson Flannel-Lined Rail Splitter Jeans (20233134) in Raw Indigo are a heavy-duty solution for winter work. Combining USA-made craftsmanship with the comfort of a flannel lining, this **Size 42** pair is a hard-to-find classic built for the long haul.