The Delicate Feel of 5th Generation, 60-Count Yarn] With a weight of 1 pound (approx. 454 grams) and a length of 840 yards (approx. 768 meters) as the base, this is considered the "first count." If the length doubles, it becomes the "second count," and if it triples, it becomes the "third count," and so on. The higher the count number, the finer the yarn. This latest 60-count cotton yarn offers a more refined feel and comfortable wear compared to the conventional 40-count yarn. [Resistant to Shape Distortion Even After 100 Washes] Delicate sewing techniques, high-quality, environmentally friendly natural materials, and rigorous washability tests ensure that these boxer briefs maintain their shape and comfortable wear even after repeated washing. [Safe for Men with Sensitive Skin] No chemical dyes are used; only natural plant-based dyes beneficial to the body, such as those from mulberry, oak, persimmon, and osmanthus leaves. The colors are pure, resistant to fading, and eliminate the worry of allergies caused by chemical dyes. [Antibacterial and Odor-Resistant] Antibacterial and odor-resistant materials suppress the odor of sweat and aging, and have passed antibacterial and odor-resistant tests (JSL1902 bacterial absorption method). They prevent unwanted odors and preserve your appeal. Also effective against indoor drying odors.