M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
M-Carbon 6
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M-Carbon 6

$180.00
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Made in Cambodia

Everything our customers love about the M-Carbon 8 in a 6-inch delivery! Featuring OTB's carbon fiber propulsion plate, the M-Carbon 6 is OTB's follow-up to the game-changing 8-inch carbon-plated boot that has been winning both tactical competitions and rave reviews from customers. The marathon inspired carbon plate delivers incredible spring, support, and enhanced forward propulsion to maximize athletic performance. 

Best For

Optimal Athletic Performance & Running • Sub-40 pound rucks • Selections • School • Competitions • Obstacle Courses

  • Marathon inspired carbon plate for spring, support, and enhanced forward propulsion.
  • Lightweight Future Foam EVA midsole for a running shoe-like ride.
  • Removable performance INSITE® Contoura® PU Footbed.
  • High abrasion GRIP-STIK FIELD rubber outsole compound for unsurpassed traction on road rucks.
  • Full air mesh lining for 360° air circulation combined with laser perforated tongue for unmatched breathability.
  • 1000D quarter panels combined with perforated ankle supports for breathability.
  • 6" split grain flesh out waterproof leather for faster drying time.
  • Strategically placed non-metallic drainage ports evacuate water in just a few steps.
  • NATO Rust-proof speed lace loops for quick lacing with field proven durable round laces.

We offer multiple shipping options to get your boots to you as quickly and reliably as possible. See below for details on rates, delivery times, and availability.

1. Standard Ground Shipping

  • Service: UPS Ground or USPS
  • Available To: Continental U.S., HI, AK, PO Boxes, APO addresses
  • Cost: Free with any order
  • Processing Time: Ships in 1-2 business days
  • Delivery Time: 3-5 business days after the shipment date

2. UPS 2-Day Shipping

  • Available To: Continental U.S., HI, AK (Not available for PO Boxes or APO addresses)
  • Cost: $25.00
  • Processing Time:
    • Same-Day Shipping (Mon-Fri): Orders received by 12:00 PM EST
    • Next Business Day Shipping: Orders received after 12:00 PM EST
  • Delivery Time: 2 business days after the shipment date

3. UPS Overnight Shipping 

  • Please Note: we do not ship overnight orders over the weekend, as our warehouse is closed on Saturday and Sunday.
  • Available To: Continental U.S., HI, AK (Not available for PO Boxes or APO addresses)
  • Cost: $50.00
  • Processing Time:
    • Same-Day Shipping (Mon-Fri): Orders received by 12:00 PM EST
    • Next Business Day Shipping: Orders received after 12:00 PM EST
  • Delivery Time: 1 business day after the shipment date

Please note that delivery times are estimates and may vary due to weather, carrier delays, or other unforeseen circumstances.

For any questions regarding your order or shipping options, please contact our support team at customerservice@otbboots.com

Need help?

Our customer service team aims to provide a first-class experience for every customer. We are available M-F 8am - 5pm CST. customerservice@otbboots.com

Learn more about our warranty

Deep Intel: M-Carbon 6

Watch the video below to hear the full product story from OTB Founder, Dan Ellis.

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