Given the evolution of human body dimensions, the increasing diversity within the law enforcement workforce, the growing risks of assault faced by law enforcement officers (LEOs), and the absence of a national standard for body armor sizing, there is a critical need to explore LEO body size classification. This exploration will facilitate the development of an armor sizing structure that adequately accommodates the current LEO population. This study aimed to address this need by developing a LEO body armor sizing scheme and creating a sizing chart/app. Additionally, a plan was devised for a series of 'sizing vests' that would enhance LEO armor accommodation and facilitate fit assessment. Torso anthropometric data pertaining to body armor sizing were collected from 756 male and 218 female LEOs across different regions of the United States. Based on the collected data, a nine-size system for male LEOs and an eight-size scheme for female LEOs were suggested. Furthermore, a sizing chart/app was proposed to enable LEOs to swiftly identify an armor size that is most likely to fit an individual, considering a few anthropometric characteristics known to LEOs. To supplement the sizing chart/app, a series of 'sizing vests' were recommended. These vests would provide LEOs with a physical means to assess and determine the best-fitting armor size, offering an alternative to relying solely on the sizing chart/app. We recommend that armor manufacturers adopt these new sizing systems and create prototypes of armor that can be evaluated within this sizing structure. This evaluation process will facilitate improved fit and enhanced protection for LEOs.

鉴于人体尺寸的演变、执法人员的多样性日益增加、执法人员(LEO) 面临的攻击风险不断增加以及防弹衣尺寸国家标准的缺乏，迫切需要探索LEO 体型分类。这项探索将促进装甲尺寸结构的开发，以充分适应当前的近地轨道人口。本研究旨在通过开发 LEO 防弹衣尺码方案并创建尺码表/应用程序来满足这一需求。此外，还制定了一系列“定型背心”计划，以增强低地轨道装甲的适应性并促进适合性评估。与防弹衣尺寸相关的躯干人体测量数据是从美国不同地区的 756 名男性和 218 名女性 LEO 中收集的。根据收集的数据，建议了男性 LEO 的九种尺寸系统和女性 LEO 的八种尺寸方案。此外，考虑到 LEO 已知的一些人体测量特征，还提出了尺码表/应用程序，以使 LEO 能够快速识别最有可能适合个人的装甲尺寸。为了补充尺码表/应用程序，推荐了一系列“尺码背心”。这些背心将为低地轨道部队提供一种物理手段来评估和确定最合适的装甲尺寸，提供一种替代方案，以取代仅仅依赖尺寸表/应用程序。我们建议装甲制造商采用这些新的尺寸系统并创建可以在此尺寸结构中进行评估的装甲原型。该评估过程将有助于改善低地轨道的适应性并增强保护。