M-FLEX 8
M-FLEX 8
M-FLEX 8
M-FLEX 8
M-FLEX 8
M-FLEX 8
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M-FLEX 8

$170.00
$170.00
Width:
Size:
Size Chart
Verify Military Status for Discount

Product Intel: M-FLEX 8

BUILT FOR SUPPORT: Ruck harder, breathe easier with our best all-around boot. Conquer any terrain with OTB's M-Flex 8. Compliant for U.S. Army Wear with MultiCam® & OCP and U.S. Air Force Wear with OCP. 

Best For:

Land and Air Missions with a heavier ruck. Built for support, comfort and performance.

Features:
  • >> High rebound comfort performance PU midsole
  • >> Removable performance INSITE® Contoura® PU Footbed
  • >> Full-length internal molded polypropylene support board for stability and support under heavy loads
  • >> High abrasion GRIP-STIK-FIELD rubber outsole compound for unsurpassed traction in all conditions
Performance Upper System:
  • >> Weight per pair (based on a size 10): 1.8 pounds
  • >> Heel to Toe Drop: 6mm
  • >> Full air mesh lining for 360-degree air circulation, combined with laser-perforated tongue for unmatched breathability
  • >> 1000D quarter panels combined with perforated ankle supports for breathability
  • >> 8" 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
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Size Guide

OTB Boots are designed to fit true to size when measured using a standard Brannock Device (the silver metal tool used in shoe stores for foot measurements).

Our sizing is similar to many popular running shoe brands, including Hoka, Asics, Brooks, and Altra. For women, we recommend subtracting 1.5 from your running shoe size to find your OTB Boot size (e.g., if you wear a size 8.5 in women’s running shoes, you would be a size 7 in OTB Boots).

If you require a wider fit, we offer WIDE options that correspond to approximately EE+ width.

    ABOUT OTB BOOTS

    We are an American owned company with decades of footwear industry expertise. Our product team works directly with elite military operators to build boots that can withstand the most demanding conditions on earth.

    What sizes are available?

    M-Carbon 8 and M-Flex 8 boots are available in Men's half sizes 5-12, whole sizes 13 & 14, in Regular and Wide. Abyss model is available in Men's half sizes 5-12, whole sizes 13 & 14, in Regular width only.

    Do you offer military discounts?

    Yes, we offer a 10% discount for military and first responders. Our website uses SheerID for verification.

    OTB Boots 1-Year Warranty

    We stand behind our craftsmanship and materials, offering a warranty against manufacturing defects forone yearfrom the date of purchase. Visit our warranty page for full details.

    What if my size is sold out?

    Select your size and then click the Notify Me When Available Button on the Product Page above. You'll be the first to know once we are back in stock!

    Are OTB Boots available in physical stores?

    Yes. Our boots are sold by select tactical gear retailers both online and in physical stores. Please reach out to us at customerservice@otbboots.com if you need assistance locating an authorized OTB Boots reseller.