GOOD ONInspired by the tough, durable T-shirts of classic American craftsmanship, GOOD ON was established in Japan to recreate these timeless essentials. The brand specializes in high-quality T-shirts and sweatshirts made with premium American cotton. Nostalgic Yet Innovative MaterialsThis piece uses a special fabric made with stretchy yarn infused with Photoelectron® technology. The fabric features a diamond-patterned structure that holds the materials in place, enhancing its functionality.The pigment-dyeing process lends the fabric a distinctive vintage appearance. Over time, as the fabric wears and fades, it develops a unique character reminiscent of classic vintage garments.Certified QualityGOOD ON utilizes "COTTON U.S.A" cotton, a globally trusted mark for premium American-grown cotton, which certifies that at least 50% of the material used is high-quality American cotton. This mark is granted only to products that meet strict international and Japanese quality standards. Your Winter Ally: Photoelectron® TechnologyPhotoelectron® fibers harness far-infrared rays emitted by the human body to deliver natural warmth. This material offers several benefits for colder seasons:1. Relaxation effects that reduce stress2. Enhanced antioxidant properties to alleviate fatigue and promote recovery3. Improved sleep quality for restful nights and deeper sleepThis material generates sustained warmth by retaining body heat, setting it apart from standard heat-generating fabrics. Vintage-Inspired DetailsThe simple crewneck design makes this piece versatile, allowing for layered styling. The underarm gussets, reminiscent of vintage sweatshirts from the 1950s, add an authentic touch while enhancing mobility. The wide ribbing at the cuffs and hem not only provides structure but also pays homage to historical designs when elastic fabrics were unavailable. Unparalleled Quality That Grows With YouAll products undergo garment dyeing, washing, and drying processes to minimize shrinkage before sale. Over time, as the fabric relaxes, it molds to your body, offering a perfectly personalized fit.Experience the evolving quality and craftsmanship of GOOD ON through everyday wear.