Pentagon Ajax 2.5 Fleece Jacket - Black

High-insulation fleece jacket designed for cold-weather use, layering systems, and extended wear in both operational and everyday environments. Can function standalone or as part of a layering system.

Built from high-volume polyester fleece, the AJAX 2.5 delivers substantial warmth while maintaining breathability and freedom of movement.

The updated 2.5 version adopts a streamlined unicolor design, making it easier to integrate into professional, military, law enforcement, and security environments where contrasting color panels may fall outside uniform regulations.

Why It Works

High warmth-to-weight performance

The 385GSM high-volume fleece construction provides significant insulation without the bulk commonly associated with heavier cold-weather garments. The result is a jacket that remains comfortable for extended wear while delivering dependable thermal performance.

Designed for active cold-weather use

A high CLO insulation value helps retain body heat during low temperatures, while the breathable polyester construction assists with moisture management during movement, reducing overheating compared to less breathable insulating layers.

Professional unicolor configuration

The AJAX 2.5 replaces the contrasting panel design of previous generations with a clean monochromatic appearance. This allows easier integration into military, law enforcement, security, and professional environments where uniform compliance and reduced visual signature are important considerations.

Built for standalone or layered systems

Warm enough to function as an outer layer in cool conditions while remaining low-profile enough to integrate into larger cold-weather clothing systems when temperatures drop further. Compatible with our MJC® system.

Comfort during prolonged wear

Flatlock seam construction reduces friction points and improves comfort when worn beneath load-bearing equipment, backpacks, or outer shells.

KEY FEATURES

High-volume fleece construction

385GSM insulation weight

High CLO thermal performance

Updated unicolor professional design

Lightweight warmth-to-weight ratio

Breathable construction for active use

Flatlock seam construction

Suitable as standalone outer layer or mid-layer

MJC® compatible

SPECIFICATIONS

Material: 100% high-volume polyester fleece

Fabric weight: 385GSM

Insulation performance: high CLO rating

Construction: flatlock seams

Compatibility: MJC® system

Design: unicolor configuration

USE CONDITIONS

Cold-weather outdoor activity

Military and law enforcement use

Security and professional environments

Range and field applications

Commuting and everyday winter wear

Layering within cold-weather clothing systems

CONSTRAINTS

Not waterproof

Not windproof as a standalone outer layer

Fleece construction may retain debris in dense vegetation

Designed for insulation rather than abrasion-intensive tasks

Summary

The AJAX 2.5 Fleece Jacket combines high-volume insulation, breathable comfort, and a professional unicolor design. Built for users who need reliable warmth without unnecessary bulk and breathability. It transitions easily between operational use, outdoor activity, and everyday wear while remaining compatible with stricter uniform requirements.Functions alone or as part of a layering system.