Four pairs of the Heavy Weight Working Crew. USA-made acrylic fibers interwoven with ultra-soft cotton body yarns, and a high-bulk acrylic footbed that resists compression to hold its cushion all day. The cushion extends over the top of the foot for comfort in steel toe boots. Reinforced heel, toe and footbed, comfort toe seam to prevent chafing, and a stay-up comfort top for long shifts. Crew height. Made in Niota, Tennessee.