5.11 Seth Shirt Jacket
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The 5.11 Seth Shirt Jacket combines a classic buffalo check pattern that you can wear anywhere with the signature tactical features that you depend on. Made with 5.8-ounce 100% cotton twill that has been brushed for extra softness, the 5.11 Seth Shirt Jacket provides continuous warmth thanks to a 7.3-ounce fleece lining in the body and 80g insulation in the sleeves. Conceal and carry your phone, sunglasses or other EDC gear
in the RAPIDraw™ snap placket. Two external pockets on the chest and two internal pockets hold even more accessories, while the zippered welt pockets provide a place to warm your hands. Side seam vents and adjustable snap cuffs on the sleeves top off this versatile shirt jacket that you’ll want to wear everywhere.
+ Body: 100% cotton yarn dye buffalo check twill, 5.8-oz. | Body lining: 100% polyester fleece, 7.3-oz
+ Centre front RAPIDraw™ snap closure
+ Left/right chest concealed drop pockets
+ Welt hand pocket with zipper closure
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.
| Size | XS | Small | Medium | Large | XL | 2XL | 3XL |
|---|---|---|---|---|---|---|---|
| Chest | 76.2-81.330-32 | 86.4-91.434-36 | 96.5-101.638-40 | 106.7-111.842-44 | 116.8-121.946-48 | 127-13250-52 | 137.1-142.254-56 |
| Neck | 33-34.313-13.5 | 35.6-36.814-14.5 | 38.1-39.315-15.5 | 40.6-41.916-16.5 | 43.1-44.417-17.5 | 45.7-4718-18.5 | 48.3-49.519-19.5 |
| Arm Length | 81.9-83.232.25-32.5 | 83.8-8533-33.5 | 85.7-8733.75-34.25 | 87.6-88.935.25-35.75 | 89.5-90.836-36.5 | 91.4-92.736.75-37.25 | 93.3-94.6 |
XS
Small
Medium
Large
XL
2XL
3XL
Trousers Fit Guide

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

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

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

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













































