ABSTRACT
This chapter discusses how to apply the Sustainable Product Evaluation, Engineering, and Design process (SPEED) process to mass-produced apparel products. Examples of the concept-of-fit (COF), pilot testing, trade studies, prototype tests, and applications in the sizing loop are presented in the form of real-world case studies. The case studies include examples from manufacturers, retailers, and procurement groups for organizations such as the military, firefighters, hospitals, and so on. Retailers and procurement groups may or may not be able to influence the design and sizing of existing products. However, they want to understand the sizing for several reasons such as: (1) to ensure it will accommodate their target population (TP), (2) to decide which sizes to purchase, (3) to decide how many of each size to purchase, and (4) to specify design criteria and sizing for future products. This knowledge enables better decisions that lead to improved efficiencies, profitability, and sustainability of their business. The case studies include examples of full fit tests, creating and checking a size selection chart, creating a sustainable fit standard, grading, and calculating tariffs.
