5.11 Size chart

5.11 Tactical® A.T.A.C.® 2.0 8″ Side-Zip Tactical Boots – Black

12391-8

BUYING FOR AN AGENCY? GET A CUSTOM QUOTE HERE

 

5.11 Tactical® A.T.A.C.® 2.0 8″ Side-Zip Tactical Boots

Designed for demanding work and extended wear, the 5.11 Tactical® A.T.A.C.® 2.0 combines rugged construction, supportive cushioning and the convenience of a YKK® side zipper.

The polishable full-grain leather toe and abrasion-resistant 840D nylon upper provide durability without unnecessary weight. Inside, a full-length dual-density Ortholite® footbed, breathable airflow tongue and Achilles flex zone help maintain comfort and mobility throughout long shifts.

Highlights at a Glance

  • Convenient YKK® side zipper

  • Polishable full-grain leather toe

  • Durable 840D nylon upper

  • Full-length dual-density Ortholite® footbed

  • Breathable airflow tongue

  • Flexible Achilles heel zone

  • 5.11 Shock Mitigation System®

  • Slip-resistant outsole

  • Agion® antimicrobial lining treatment

  • Concealed utility pocket

All-Day Comfort

The full-length Ortholite® footbed combines two specialised foam layers. Ortholite® X25 foam provides cushioning and rebound, while the upper recovery-foam layer conforms to the foot for a more comfortable fit.

A breathable tongue improves airflow, while the Achilles flex zone provides greater freedom of movement without sacrificing essential support.

Durable Professional Construction

A polishable full-grain leather toe provides a professional appearance, while the lightweight 840D nylon upper offers durability and flexibility.

The 5.11 A.T.A.C. midsole, outsole and Shock Mitigation System® help cushion repeated impact during prolonged standing and walking.

Easy Side-Zip Entry

The YKK® side zipper allows the boots to be put on and removed quickly while retaining traditional laces for fit adjustment.

Features

  • Approximately 8″ boot height

  • Full-grain leather toe

  • 840D nylon upper

  • Full-length dual-density Ortholite® footbed

  • Ortholite® X25 cushioning layer

  • Breathable airflow tongue

  • Achilles heel flex zone

  • YKK® side zipper

  • 5.11 A.T.A.C. midsole and outsole

  • Shock Mitigation System®

  • Slip-resistant outsole

  • Agion® antimicrobial lining treatment

  • Concealed utility pocket

  • Colour: Black

Important Sizing Information

These boots are sold in US men’s sizing.

As a general conversion, the US size is approximately one size higher than the corresponding Australian/UK men’s size. For example:

Australian/UK size 9 generally corresponds to US size 10.

Please check the footwear size chart before ordering. Fit can vary according to foot shape, sock thickness and personal preference.



5.11 Men and Women Footwear Sizing 2

Ideal For

  • Security and public-safety work

  • Long shifts and extended standing

  • Patrol and operational duties

  • Outdoor and field use

  • Work and everyday wear

  • Customers wanting quick side-zip entry

Important Product Information

This standard A.T.A.C.® 2.0 model is not described as waterproof and does not include a certified protective safety toe. Customers requiring waterproof or certified protective footwear should select the appropriate specialised model.

Frequently Asked Questions

Are these boots sold in Australian sizing?
No. They are sold in US men’s sizes. Please consult the size chart before ordering.

Can the fit still be adjusted with laces?
Yes. The laces provide fit adjustment, while the YKK® side zipper allows faster everyday entry and removal.

Are these boots waterproof?
No waterproof membrane is specified for this model.

Do they have a safety toe?
No. This is the standard A.T.A.C.® 2.0 Side-Zip Boot, not the certified A.T.A.C.® Shield model.

Is the leather suitable for polishing?
Yes. The full-grain leather toe can be polished to maintain a professional appearance.

Are they suitable for extended shifts?
Yes. The Ortholite® footbed, airflow tongue, Achilles flex zone and Shock Mitigation System® are designed to support extended wear.