The piece is made with a 78% nylon and 22% spandex fabric, a high-elastic blend that supports freedom of movement and a close, comfortable fit for sports and everyday wear. The seamless, traceless construction and bonded no-welt design give it a smooth, simple look that suits a minimalist, casual wardrobe, while the solid-color finish keeps it easy to pair. The extended cotton crotch is made of 100% cotton and provides 10A antibacterial protection, remaining effective against three major bacteria even after 300 washes. The fabric offers high stretch with over 180% horizontal elongation and over 190% recovery, plus a cool, quick-drying feel with 1.5 times the heat dissipation efficiency, making it suitable for sports and warm-weather wear. The lining is 100% cotton, a soft natural interior detail against the skin. The piece features a traceless high-elastic waistband and seamless bonded edges for a smooth, close fit, with a mid-rise design and a lengthened crotch of up to 15 cm for reduced friction and reliable coverage.