USGI Tropical Combat Boots (TCB) Mildew Resistant, Spike Protective

US Genuine Issue Mildew Resistant Tropical Combat Boot, in new and unissued condition.  Produced by Genesco in 1968.

A "Third Pattern" jungle boot from the Vietnam War era. This specific iteration is historically significant because it marked the widespread transition from the traditional Vibram sole to the mud-shedding Panama sole. 

Note

• This is a RARE and HISTORICAL item

NSN

• Size 14XN: 8430-00-131-4836

Features

• Manufacturer: Genesco (often marked "CIC Genesco" on the sole or interior).
• Specification: Manufactured under MIL-B-43154.
• External Length (Outsole): Approximately 13.25 inches from toe to heel.
• Internal Length: 12.5 inches.
• Width (Across Ball): 4.5 inches at the widest point of the outsole.
• Heel Width: Approximately 3.25 inches.
• Boot Height: Standard military specification is 8 to 9.5 inches from the bottom of the heel to the top of the canvas shaft.
• Heel Height: 1.25 inches.
• Weight: 4 lbs
• Spike Protection: Features an integral stainless steel plate built into the sole to protect soldiers from Punji stake traps.
• Outsole: The 1968 model utilizes the Panama sole. Designed by Sgt. Raymond Dobie, this tread pattern uses the natural flexing of the foot to squeeze out mud and debris, maintaining traction in swampy environments.
• Upper Construction: Olive Drab (OD) nylon duck canvas uppers with black full-grain leather lowers.
• Mildew Resistance: The canvas was treated for mildew resistance, and dual brass screened eyelets at the instep allowed water to drain out rapidly while preventing debris from entering.
• Support: Reinforced with nylon webbing at the ankles (2-inch wide) and backstay to provide stability without the weight of full leather.
• Transition Period: While the Panama sole was directed for use on all tropical boots in April 1968, some boots manufactured in early-to-mid 1968 still featured the earlier Vibram sole due to existing material contracts.