Frontier Shirt Jacket by Sitka

Stay warm, look sharp, and move freely with the Sitka Frontier Shirt Jacket – the perfect fusion of casual style and outdoor performance. Designed for the man who demands comfort and durability from his everyday gear, this shirt jacket delivers premium insulation and timeless design for cool-weather versatility. Whether you're heading into town or out into the field, the Frontier Shirt Jacket adapts to your lifestyle with ease.

Product Description

The Sitka Frontier Shirt Jacket is built for transitional seasons and daily wear. Blending the tailored look of a flannel with the function of a jacket, it features 60g PrimaLoft® Black insulation for lightweight, breathable warmth without the bulk. The rugged 65% cotton / 35% polyester shell delivers durability and a soft hand-feel, while the interior microfiber lining enhances comfort and layering. Snap-front closures make for easy on-off and a classic shirt-jacket silhouette, perfect for outdoor adventures, travel, or everyday wear.

Key Features

• Lightweight Insulation: 60g PrimaLoft® Black insulation provides efficient warmth for cool conditions without overheating

• Durable Shell Fabric: Rugged 65% cotton / 35% polyester blend balances breathability with long-lasting wear

• Soft Lining: Interior is lined with 100% polyester microfiber for added comfort and layering performance

• Relaxed Fit: Cut for freedom of movement and easy layering over base layers or hoodies

• Snap-Front Closure: Full snap placket for quick and easy closure with a clean, classic look

• Versatile Styling: Functions as a mid-layer or outerwear piece for town, travel, or field use

• Minimalist Look: Clean lines and neutral tones make it an ideal addition to any wardrobe

• Weather-Ready Performance: Ideal for fall, early winter, and spring outdoor use

Specifications

• Shell Material: 65% Cotton / 35% Polyester

• Lining Material: 100% Polyester Microfiber

• Insulation: 60g PrimaLoft® Black Synthetic Insulation

• Closure: Full Snap-Front Placket

• Fit: Relaxed

• Weight: Lightweight (approx. 1.5–2.0 lbs depending on size)

• Available Sizes: S – 3XL

• Available Colors: Varies by season (typically neutral earth tones)

Benefits

• Provides warmth without weight or bulk

• Ideal for layering under heavier jackets or vests

• Durable enough for field use, stylish enough for casual wear

• Resists wear and tear during active use

• Breathable construction prevents overheating during activity

• Easy to pack, wear, and layer for dynamic weather

Usage Instructions

• Wear over a base layer or flannel for cool weather

• Machine wash cold with like colors, tumble dry low

• Avoid fabric softeners to preserve insulation loft

Warranty Information

Backed by Sitka Gear’s Limited Lifetime Warranty covering defects in materials and workmanship.

Upgrade your everyday outerwear with the Sitka Frontier Shirt Jacket – where functional warmth meets rugged, all-day style. Perfect for the outdoorsman, commuter, or weekend traveler who needs gear that performs and looks great doing it.