Katin Sierra Flannel Birch

The Sierra Flannel is the go-to midweight shirt for cooler days, built from a comfortable cotton blend that holds up to regular wear. That blend adds durability without losing the soft, broken-in feel you want from a flannel.

Wear it open over a tee or buttoned up on its own — it's the layer you reach for when the temperature drops and you still want to look put together.

The Story

Katin has been making surf gear since 1955, and the Sierra carries that heritage forward in a clean, everyday flannel silhouette.

Fabric, Origin & Care

• Fabric: 60% Cotton, 23% Polyester, 17% Acrylic midweight flannel
• Finish: Brushed finish with enzyme wash
• Weight: Midweight
• Care: Machine wash cold, non-chlorine bleach, tumble dry low, iron low heat

Fit & Size Guide

A Classic Fit long sleeve flannel with a classic collar. Our model is 5'11" and wears a size Medium. We recommend choosing your standard size.

Shipping

For current shipping rates and delivery times visit: https://santoloco.com/pages/shipping-costs

Free in-store pickup available – select at checkout.

FAQ

How does the Sierra Flannel fit?
It's a classic fit — true to size for most people. If you're between sizes, go with your usual.

What does the fabric feel like?
The cotton blend has a brushed, enzyme-washed finish, so it feels soft and broken-in from the first wear.

How should I wash it?
Machine wash cold, tumble dry low, and iron on low heat if needed. Skip the chlorine bleach.

Is it warm enough for fall?
It's midweight — warm enough for cool fall days and layering without feeling bulky.