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1 review Size & Fit Guide

A modern take on a timeless classic, the Block Insulated Shirt Jacket applies all the best body lines and proven elements of the shirt jack with premium block plaid and cutting edge Compact MX Insulation™. Heat MX™ combines sustainability and performance to give you twice the warmth with half the bulk of ordinary insulation.


  • Water resistant
  • Wind resistant
  • Moisture control
  • Center front snap closure
  • HEAT-MX insulated body for warmth and maximum performance
  • Durable rip-stop shoulder overlays with secure chest pocket coverage
  • Adjustable cuffs with snap closure
  • Style #: 1310110


  • Body: 8.5 oz Twill 100% Cotton
  • 110g Heat MX Compact insulation
  • 100% Polyester quilted taffeta lining
CA Prop 65 Warning
California Prop 65 Warning
Customer Reviews
5.0 Based on 1 Reviews
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Robert C.
United States United States
Great Shirt

Good looking garment. Well made. Reasonable price. Thanks Cat!

Sizing & Fit Guide

Sizing and Fit Guide

Durable, Comfortable, Functional Workwear - Caterpillar Workwear Fitting and Sizing Guide