Skip to content

Stay comfortable, focused and safe while wearing body armor: Cooler, drier in hot weather. Drier, warmer in cold. Less sticky, itchy, and smelly. Lightweight construction, adjustable fit, and superior ventilation, Maxx-Dri not only works. It works brilliantly: A revolutionary solution to keeping you cool, dry, odor-free, comfortable, focused and safe while wearing body armor in hot, humid weather (and drier and warmer in the cold).

Maxx-Dri Vest 4.0 - Body Armor Ventilation - 360° Air Flow

Stay comfortable, focused and safe while wearing body armor: Cooler, drier in hot weather. Drier, warmer in cold. Less sticky, itchy, and smelly. Lightweight construction, adjustable fit, and superior ventilation, Maxx-Dri not only works. It works brilliantly: A revolutionary solution to keeping you cool, dry, odor-free, comfortable, focused and safe while wearing body armor in hot, humid weather (and drier and warmer in the cold).

Original price $ 97.00 - Original price $ 97.00
Original price
$ 97.00
$ 97.00 - $ 97.00
Current price $ 97.00
Max-Dri Vest 4.0 Video
Size: XS/S
Add to Wishlist Remove from Wishlist
Manage Wishlist

free shipping on domestic orders over $100

Domestic + International Shipping


Domestic First Class Package Shipping normally ships for receipt within 5-10 business days. Saturdays, Sundays and holidays are not considered business days. Expect an extended delivery date when:

  • Merchandise requires personalization
  • Merchandise is shipped direct from the manufacturer
  • Merchandise is of an irregular size or weight 
  • Merchandise is on back order from the manufacturer
  • Shipment is destined for a U.S. Territory or Possession
  • USPS is experiencing delays due to unexpected circumstances 

If you required more trackable and quick delivery, please select UPS Ground. Extra charge will apply. 

In the case of a backorder, all items may be delayed until all items are available for shipment.

We recommends providing a street address for shipping since using a P.O. Box address may result in a delay. Deliveries to APO/FPO and P.O. Boxes will be shipped via United States Postal Service at Standard rates. Select Standard Shipping at checkout. Allow for extended delivery times.


First Class International Package is the most affordable shipping option but please be aware that it may take between 4 - 10 weeks for delivery depending on your location. 

There may be delays due to Increased volume and carrier’s reduced capabilities to handle packages related to COVID-19. Please allow more time in consideration of current situation. 

All prices on our site are in US dollars. Your credit card company will bill you with your local currency at the current exchange rate.

When ordering outside of United States of America, the recipient is responsible for assuring the product can be legally imported to the destination country.

The recipient is the importer of record and must comply with all laws and regulations of the destination country. The recipient of an international shipment may be subject to import taxes, customs duties and fees, which are imposed once a shipment reaches the recipient's country. Additional charges for customs clearance must be fulfilled by the recipient. 221B Tactical has no control over these charges, nor can predict what they may be.

Customs, duties, and taxes are non-refundable: so a shipment that is refused because of unexpected import fees, the cost of the original shipping and any return shipping charges will not be refunded. Customs policies vary widely from country to country; you should contact your local customs office for more information. When customs clearance procedures are required, it can cause delays beyond our original delivery estimates.

To avoid a delay in receiving your order from customs, we strongly suggest:

  • Providing a phone number where you can be reached by customs when your product arrives. This phone number will be listed on the commercial invoice so customs can reach you to clear your order.
  • Please do not refuse a shipment or ignore requests from carriers regarding duty and/or tax liability charges. Be aware that most carriers will hold a shipment for 5 days after arrival in your country before they return it to the sender.

We do not refund original shipping charges for goods that are refused for delivery at customs.

If you have any shipping questions regarding your order, please contact us:

free returns

Returns & Exchanges

Return Policy

221B Tactical has a 30-day returns and exchanges policy except for Body Armor products and Watches.  You may return your merchandise to 221B Tactical within 30 days upon the receipt of your product. Refunds will be applied to the original credit card used at the time of purchase.

Clothing/Apparel can not be returned or exchanged after they have been worn for any reason other than fitting. They can not be returned or exchanged after washing. If you find that size does not fit, please do not wear them again and contact us immediately for return or exchange. Underwear can not be returned for any reason and are Final Sale.

Postage will be refunded on returns due to defective merchandise or an error in shipping.  Postage will not be refunded on returns or requests for size exchanges.  In the event that the style being returned is no longer available for exchange, a product of equal value may be offered. 

221B Tactical will only honor returns on orders placed directly with  

221B Tactical will not honor returns on merchandise purchased at outside retail locations.  No returns or exchanges will be accepted for products purchased from unauthorized sellers. Please contact that seller directly.  

Return and exchange shipping charges will only be covered by 221B Tactical in the event of an exchange of a defective product or a shipping error.

Please be sure to follow washing and handling instructions carefully.  We at 221B Tactical take great care to offer you the best quality products.  We ask that you please do your part to follow the washing instructions carefully to protect your investment and to avoid voiding your warranty. Thank you. 


To Make a Return or Exchange

1) Email us at and explain the reason for exchange or return to obtain authorization for return or exchange.
2) Please put your order number as attention.

We recommend using UPS to ship your return.  If sending via regular mail we recommend insuring your parcel.  Mail returns to:

Attn: Order#
221B Tactical
43 West 33rd Street
Room 501 
New York NY 10001

Thank you!

"I have been a cop for 33 years. I now walk a foot beat and carry 27lbs of gear in the summer working outside events....OMG ! This this a game changer!! It does add some slight bulk under your vest but its very comfortable, very light and I actually can feel a breeze crawling up my front and back! I now go home less sweaty and have more energy at work." —Michael K. (Oct. 4, 2021)



Some 250,000 police, military and private security personnel worldwide use the Maxx-Dri Vest, and have given it more than 20,000 5-star reviews! Lightweight construction, adjustable fit, and superior ventilation, Maxx-Dri not only works. It works brilliantly: A revolutionary solution to keeping you cool, dry, odor-free, comfortable, focused and safe while wearing body armor in hot, humid weather (and drier and warmer in the cold).

"I love this thing. Taking my vest off when I get home no longer feels like peeling off an outer skin and my undershirt doesn't come off drenched in sweat. Absolutely worth the money." —Paul R. (Aug. 15, 2021)

Maxx-Dri is the product that started 221B Tactical, created by co-founder and former police officer Suresh Madhavan, who had suffered many long days in body armor and was determined to find a better way.

Ultra thin and light as a feather, Maxx-Dri Vest 4.0 provides a layer of space between your armor and body/base-layer shirt. It works whether you’re wearing an external plate carrier or internal armor beneath your uniform shirt. The mesh design with large air-flow holes, and front-to-back dual chambers, lets heat and moisture escape, while bringing in and circulating fresh air. The vest material is anti-microbial, anti-bacterial, and holds no moisture at all, so sweat can’t get to your body armor. Both your armor and Maxx-Dri Vest stay clean and odorless, and don’t need frequent laundering.

"It’s been 90 everyday since the Maxx-Dri vest arrived. It is absolutely amazing. I used to have heat rash and a smelly vest at the end of the day. Now it feels like it’s 75 and my ballistic vest is nearly dry." —Brad G. (Jun. 3, 2021)

"Stop the stink. This product has saved me soo much time and effort. No more tearing apart the vest to constantly wash it because the funk coming from it is enough to knock a buzzard off of a gut pile." —Kara G. (Aug. 8, 2021)



Maxx-Dri Vest provides full 360-degree coverage everywhere your armor rests. A hook and loop closure system provides a secure and adjustable fit. Shoulder straps secure it to your body armor, the side straps are wide, mesh and breathable, and a center divider provides "grip" so the vest doesn't slip and shift around.

The Maxx-Dri material provides cushioning, but because it doesn’t compress, it distributes the weight of your armor more evenly across your body and torso. The overall effect is that your armor feels lighter and more like part of your body, rather than something you’re wearing. You feel less fatigued over time.


We hear this a lot from customers who are incredulous at how well Maxx-Dri really works.

"A No Brainer!!! I wish I new about this sooner and I have to say this is like magic. You can literally feel air going through the vest and keeping you from a sticky sweaty shirt." —Jorge C. (Dec. 7, 2022)

"I’ve had the vest for about a week and a half and wow. I can’t believe I didn’t hear about this sooner. It’s beyond comfortable and allows PLENTY of airflow between myself and my soft armor. I also don’t sweat as much while wearing it." —Matt M. (Feb. 10, 2022)



We make this promise: Try Maxx-Dri Vest for 30 days and if you don’t love it, we’ll pay the shipping to return it for a refund.

"Total game changer! I’m a person who gets overheated very easily, I soak through my uniform shirt and my vest carrier is wet at the end of my shift. The Maxx-Dri 4.0 has changed my life. Now at the end of shift I’m not rushing to take my uniform off because my of being uncomfortable, now I am amazed that my shirts are dry and my vest isn’t wet at the end of a warm day." —Juan B. (Apr. 22, 2021)



Made from a highly durable polymer with triple- reinforced stitching, Maxx-Dri Vest is nearly indestructible. It comes with a lifetime 100-percent money-back guarantee against breakdowns from manufacturing defects. It's been on the market several years now and customers report that it still looks and works like new. You should have it for life.

"I’ve had this product for years now and it’s amazing. I was shocked at the flow of air under my vest the first time I wore this. I live in south Florida and the summers are brutal on the job wearing your vest with 100% humidity and 100 degree days. This thing was and still is a game changer. I have the original and it still holds up to this day." —Bryan Byrne (March 30, 2022)



Even though Maxx-Dri Vest may last a lifetime, you can buy more than one for convenience, or to give as gifts. We offer these discounts (enter the code at checkout):

3-4 vests, 10% off: MDV10
5-49 vests, 15% off: MDV15
50+ vests: Contact


"Don’t leave home without it!" —Joseph N. (Apr. 16, 2021)




Customer Reviews

Based on 94 reviews Write a review

Customer Reviews

Based on 107 reviews
Brian Black
Texas heat of 108

I wear an external kevlar carrier, work days in the sun and heat, 106-108 deg f days, dark blue / black department uniform, foot patrol, outside.
This thing WORKS. Pair this with a moisture wicking shirt and you almost go home dry in that heat. In the normal 80 deg range weather, i pretty much do go home dry.

That’s awesome Brian! Glad it’s helping you!

Kevin Wollmuth
First time being dry!!

For the first time since wearing a vest I'm actually dry when I take it off.

Homer Villarreal

Love it already, especially with Texas heat!!

Robin McKinney
Worth the wait!

I'm really loving this vest, I spend 90% of my time outside in the heat, this vest has helped a lot with the heat, but even better my heat rash is gone. I'm very happy with this purchase and am planning to try one of the thermal shirts when winter hits.

Dana Simmons
4.0 Maxx Dry Vest

So far its been great. Very comfortable and cooling. I would definitely recommend to anyone who wears body armor.