“AR 670-1 compliant” is a marketing phrase
Search for combat boots and every listing swears it meets the standard. Not one of those badges was issued by a service. No branch certifies a boot because a product page says so — and the regulation everyone name-drops does not contain a single boot measurement.
Here is what the four publications actually say, quoted out of the documents themselves. Every one is linked at the bottom so you can check us.
- ArmyThe specs live in DA Pam 670-1, not in the regulation everybody quotes.
- Air ForceThe height standard changed to 6–12 inches. You have until 30 September 2026.
- NavyA published list of specific styles. If your boot is not on it, it is not authorized.
- Marine CorpsThe boot has to carry the emblem. No emblem, no wear — regardless of specs.
Four services, four completely different mechanisms. Nobody outsourced the answer to a retailer, which is why a retailer cannot give it to you.
Army
Paragraph 2-10a“Commercially purchased items that are authorized for wear in lieu of military-issued items must conform to the basic specification of the military-issued item, unless otherwise specified in this regulation.”
Paragraph 20-5, "Boots", in full“See DA Pam 670-1.”
That second quote is the whole paragraph. AR 670-1 — the document every boot listing on the internet claims compliance with — does not contain a single boot dimension. The height, leather, and sole specs are in DA Pam 670-1, and the pam gets revised. Read the current one at the Army Publishing Directorate before you spend money. We are not reprinting numbers here that may have changed since we last looked, which is exactly the trap the retailers walked into.
Air Force
Paragraph 7.4.2.1 (Changed)“Boots must be between 6-12 inches in height (measured from the bottom of the heel tread to the top of the back of the boot) and soling material will not exceed 2 inches in height. Note: Airmen have until 30 September 2026 to comply with new boot height standard.”
Paragraph 7.4.2.1, continued“Boots will be laced up with plain rounded toe or rounded capped toe with or without a perforated seam. […] A zipper or elastic inserts may be worn; however, if worn, they will be without design. Boots can be either with or without a safety toe. Logos will be the same color as the boot. Designs are not authorized.”
This is the most specific and the most current boot rule in the US military, and it comes with a deadline most Airmen have not put in their calendar. Measure from the bottom of the heel tread to the top of the back — not the marketing number on the box. And read that last line twice before you buy something with a contrast-stitched logo: the logo has to be the same color as the boot, and designs are not authorized. The guidance memo also says commanders may authorize black combat boots in some situations, and athletic shoes are available when medically necessary and approved.
Navy
Opening paragraph“Certified and non-certified boots on this list are authorized for wear with the NWU Type III. […] Rough-side out and smooth leather brown boots on this list are authorized optional boots requiring Commanding Officer's permission and guidance for wear.”
Removed / Not Authorized section“Bates Shoe Company, Style E50501 (Update): These boots are only authorized to be worn by Sailors assigned to USMC units and when wearing the Marine Corps Combat Utility Uniform (MCCUU). They are not authorized to be worn with any Navy uniform.”
The Navy does not publish a spec and let you shop against it — it publishes styles by manufacturer and certificate number. The list runs Belleville, Bates, Rocky, Oakley, Altama and Original Footwear. Brown boots are optional wear and need your CO to say yes first, which means the purchase decision is not yours alone. And note the last entry: a boot can come off the list. Check the current version before you buy, because the copy in your head is from whenever you last looked.
Marine Corps
Paragraph 3012 (Footwear), Combat Boots, subparagraph a“The standard MCCBs (HW and TW) combat boots are the brown rough-side-out leather boots, and will be worn as issued/sold through the DoD Supply System/Retail Clothing Outlet and those private vendors who have authority to sell the patented boots. A Marine Corps emblem heat-embossed on the outer ankle identifies MCCBs authorized for wear by Marines.”
Paragraph 3012, subparagraph b, "Optional Boots"“Optional hot and temperate weather boots with a Marine Corps approval identification number (see fig. 1-4) and Marine Corps emblem on the outside heel of the boot are authorized for wear with the MCCUU and will meet the minimum requirement.”
The Marine Corps solved the "is this boot legal" problem in the most Marine Corps way possible: the authorized boot is stamped. An approval identification number and an emblem on the heel, or it is not an optional boot, no matter how closely it matches the description. This is the one service where you can settle the question by looking at the boot instead of arguing about a spec sheet.
The Air Force guidance memo above says in its own opening that it applies to the Regular Air Force, Air Force Reserve and Air National Guard only, and does not apply to the Space Force. Guardians fall under SPFI 36-2903. We have not read the current version of it, so we are not going to tell you what is in it — but do not assume the 6–12 inch change carried across, because the memo that made it explicitly did not.
What this means when your card is out
- Check the current document, not the listing. All four of these get revised. The Air Force one changed in January and set a deadline in September. A vendor page written in 2023 does not know that.
- Fit the first pair in person. Sizing is not consistent across tactical boot lines. A pair you cannot return halfway through break-in is money you set on fire, and no return policy survives 60 miles.
- Buy the second pair online. Once you know the exact model and size, ordering an identical second pair is the safe online purchase — and if you are rucking seriously you want two, because one will be wet.
- Your commander is the last word. The Army routes optional wear through the chain, the Navy requires the CO to authorize optional brown boots, and the Air Force lets commanders authorize black boots in some situations. A regulation you read correctly still loses to a local policy.
Propper has been making uniforms on military contract since 1967 — not a tactical-cosplay brand that showed up on Amazon last spring. Boots, utilities, duty pants, the whole catalog this page is about. You know what your service allows now, so go buy it: the links below are affiliate links, they cost you nothing extra, and they pay for the research above.
Sailors, one specific: the Navy buys by style and certificate number, and Propper isn't on that list. Get your NWU Type III boots off the list. Their uniforms and duty gear are a separate question and not governed by it.
Sources
Every quotation above was read out of these documents on 14 August 2026. Publications get revised — if you are about to spend money, open the current one yourself.
- AR 670-1 (PDF, usarcent.army.mil) — AR 670-1
- DAFI 36-2903 with DAFGM 2026-01 (PDF, afpc.af.mil) — DAFI 36-2903_DAFGM 2026-01
- NWU Type III Authorized Boots (PDF, mynavyhr.navy.mil) — NWU Type III Authorized Boots for Wear
- MCO 1020.34H (PDF, marines.mil) — MCO 1020.34H
One warning if you go looking on your own: at least one Army mirror still serves the superseded 31 March 2014 edition of AR 670-1. Check the date on the cover page before you trust anything you download, including from a .mil domain.
This is not an official communication from any service, and it does not replace your chain of command or your service's current publications. Some links on this page are affiliate links — see our disclosure. What the regulation says is never for sale.