281Z Socks are designed in such a way that a large amount of sweat is absorbed by the sock, then it is equally<br> distributed over the entire area and evaporates to the outside under the influence of internal pressure inside<br> the footwear.<br> Zones of maximum sweating and wear of socks are reinforced with additional weave.<br> On top of the socks there are special "channels" for additional air circulation and heat exchange. <br> The combination of natural cotton, nylon and elastane create a balance between heat transfer properties and strength<br> characteristics of the socks.<br> Field socks are created by specialists of <b>281Z Development Group*</b>. All materials which are used in the production of socks are NIR Compliant.<br> Made in Ukraine!<br><br> *281Z Development Group is a group of specialists in military gear that participated in the soldier's personal<br> equipment enchancement program of Ukrainian Armed Forces.<br> From 2016 to 2018 281Z Development Group cooperated with the popular Ukrainian military brand.<br> All products, that were developed by 281Z are thoroughly tested in field conditions and have proven their quality in combat.<br><br> <b>IMPORTANT:</b><br> <b>The average height of the sock is about 13-14 inches. Depending on the size it can be slightly longer or shorter. The fit of<br> the sock heavily depends on you calf width - on the thin leg it can be nearly over-the-calf length.<br> Our socks are made of high quality materials that have high stretchability characteristics. Due to that socks may not feel tight<br> when new,but after some time and couple of washings the sock will "remember" the shape of your foot and will fit perfectly.<br> Please note that when you have boundary size (e.g. size 10) you can choose beetween sizes (e.g. beetween Small and Medium)<br> depending on your preferences. The smaller size will provide more tight, snug fit, while the larger size will provide freer fit.</b>