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5.11 Tactical
SKU: JAU780036 BLA S

5.11 Frontier Shirt Jacket

£123.50
VAT Inc
Read our 9.8K reviews
Colour: Black Plaid (371)
Size

1 in stock - Next day delivery available

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5.11 Frontier Shirt Jacket
Overview

Built to pack heat without the bulk, 5.11’s Frontier Shirt Jacket is warm where it matters and light where it counts. It wears like a flannel, toughens up with use, and holds the line from trailhead to truck bed when the cold moves in. Quilted insulation across the body and sleeves locks in warmth, while practical storage and clean styling keep it low-profile and mission-ready.

Key Features
  • Quilted body and sleeves with insulation for all-day warmth and a rugged hand
  • Brushed tricot-lined zipped hand pockets to warm hands and secure essentials
  • Chest patch pockets with ReadyLoop™ for functional, built-in utility
  • Hidden internal and document pockets for discreet storage
  • Adjustable snap cuffs for a custom fit that seals in heat
  • Subtle 5.11 branding with embroidered and woven [+] label

Size Guide

Open the size guide to check sizing and get the best fit possible.

5.11 Tactical Clothing

Arm length refers to your actual arm length, not the garment's sleeve length.

SizeXSSmallMediumLargeXL2XL3XL
Chest76.2-81.330-3286.4-91.434-3696.5-101.638-40106.7-111.842-44116.8-121.946-48127-13250-52137.1-142.254-56
Neck33-34.313-13.535.6-36.814-14.538.1-39.315-15.540.6-41.916-16.543.1-44.417-17.545.7-4718-18.548.3-49.519-19.5
Arm Length81.9-83.232.25-32.583.8-8533-33.585.7-8733.75-34.25 87.6-88.935.25-35.7589.5-90.836-36.591.4-92.736.75-37.2593.3-94.6
XS
Chest76.2-81.330-32
Neck33-34.313-13.5
Arm Length81.9-83.232.25-32.5
Small
Chest86.4-91.434-36
Neck35.6-36.814-14.5
Arm Length83.8-8533-33.5
Medium
Chest96.5-101.638-40
Neck38.1-39.315-15.5
Arm Length85.7-8733.75-34.25
Large
Chest106.7-111.842-44
Neck40.6-41.916-16.5
Arm Length 87.6-88.935.25-35.75
XL
Chest116.8-121.946-48
Neck43.1-44.417-17.5
Arm Length89.5-90.836-36.5
2XL
Chest127-13250-52
Neck45.7-4718-18.5
Arm Length91.4-92.736.75-37.25
3XL
Chest137.1-142.254-56
Neck48.3-49.519-19.5
Arm Length93.3-94.6

Trousers Fit Guide

Looser Tighter
Relaxed
Relaxed

The loosest cut through the seat and thigh, with a straight line down to the leg opening for maximum room to move.

Regular
Regular

A balanced fit with space to move without feeling baggy — straight through the knee to the leg opening.

Straight
Straight

A clean, straight line from thigh to ankle with a slight taper at the leg opening for a tidier finish.

Slim
Slim

Cut close through the thigh and knee, tapering to a slim leg opening for the trimmest silhouette.

Sizing Instructions

How to Measure
Use your chest, neck, and arm length to find the right size for tops and outerwear. Use your waist measurement — where you actually wear your trousers — for bottoms and belts.

Neck
Measure around the base of your neck, where a collar would sit.

Chest
Measure under your arms and around the fullest part of your chest, keeping the tape parallel to the floor.

Arm Length
Slightly bend your elbow. Measure from the center back of your neck, over the top of your shoulder, and down to your wrist.

Pant Waist
Measure around your natural waistline — where your trousers actually sit, not necessarily your narrowest point.

Hip
Stand with your feet together and measure around the fullest part of your hips, keeping the tape parallel to the floor.

Inseam
Measure from the crotch straight down the inside of the leg to your ankle, or to your preferred trouser length.

Sizing instructions diagram
Measurements are approximate — for the best fit, compare against a similar garment you already own.
5.11 Tactical

5.11 Frontier Shirt Jacket

£123.50
VAT Exc
5.11 Frontier Shirt Jacket
Overview

Built to pack heat without the bulk, 5.11’s Frontier Shirt Jacket is warm where it matters and light where it counts. It wears like a flannel, toughens up with use, and holds the line from trailhead to truck bed when the cold moves in. Quilted insulation across the body and sleeves locks in warmth, while practical storage and clean styling keep it low-profile and mission-ready.

Key Features

Colour

Size

  • S
  • M
  • L
  • XL
  • 2XL
  • 3XL
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