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ARMY BOOTS OF THE WORLD. REVIEWS

That's why "jungle" boots have double screened vent ports in the instep for ventilation and drainage of moisture, and textile (canvas) upper to make the boots more lightweight and comfortable. So the military boots for jungle environment must be quick drying and lightweight, durable and mildew resistant, providing protection from "punji" sticks and many other jungle hazards.

The weight of the footwear in hot and wet climate is a very important matter. Implementation of the canvas and rubber "jungle" boots instead of regular service shoes and canvas leggings allowed to reduce the weight of a pair of boots from 4 lb. 2 oz (about 1,87 kg) to 3 lb. 4 oz. (about 1,47 kg), yet providing better protection from insects and underbrush. The cleated rubber bottom provided firm footing, much better than flat out-soles of the regular service shoes.

The insoles are not less important part of the "jungle" boot concept, especially for the ones made of rubber and canvas. The famous "SARAN®" insoles were designed back in the year 1942. SARAN®" is the industrial name for PVDC (Polyvinylidene chloride), one of the first commercially available synthetic polymers, which are essentially non-irritating to the skin and are considered safe for humans and the environment. "SARAN®" insoles are made of fused layers of woven mesh PVDC, and they were used to make ventilating insoles for newly developed "jungle" boots of rubber and canvas. The "SARAN®" ventilating insoles trapped air which was circulated throughout the interior of the boot during the walking; moist interior air was exchanged for outside air via the built-in screened eyelets at the inside shank of each boot. In cold weather, the trapped air in "SARAN®" insoles kept feet from freezing by insulating them from the frozen ground; when walking, the insoles circulated moist air that would otherwise condense and freeze, causing trench foot or frostbite.

The experimental tests of the new M-1942 rubber-and-canvas "jungle" boots with "SARAN®" mesh insoles, which were made by US Army units during jungle exercises in Panama and South America clearly showed that this concept allowed to increase the flow of dry outside air to the insole and base of the foot, reducing blisters and tropical ulcers. Due to the positive results of the field tests the "SARAN®" ventilating mesh insoles were also used in the "Okinawa" boots (M-45 tropical combat boots).

The early "jungle" boots, made of rubber out-sole and canvas top, were created by US MoD in conjunction with the "US Rubber Co.". These boots used during World War II in the South Pacific Theater of operations. On August 31, 1942 the first model (M-1942 or simply M-42) was approved and went into production recently to provide the American troops fighting in the Pacific region. These boots featured canvas duck top, the tongue was stitched high to keep out water, mud, small pebbles and insects, rubber soles with corrugated tread pattern provide good traction with most surfaces. The rubber sole was kept away from the feet with removable fabric insoles, which in conjunction with cushion sole socks provided comfort of wear. In general, these boots were cool and lightweight, it was easy to dry and clean them.

On the picture one can see green canvas and rubber "jungle" high boots are manufactured by "US Rubber Co." on September 19, 1942, that is indicated on the ink stamp inside the boots along with Contract No 155-QM-13999.

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