This resistance band is made of polyester cotton + latex silk, there are three kinds of tensile strength: 60lbs, 90lbs, 120lbs. soft knitted fabric is comfortable and wear-resistant toughness, tensile anti-breakage, washable and reusable! Embedded double-layer latex silk, enhanced strength is more suitable for stretching, not easy to collapse, strong resilience, can be customized PU leather label, cloth label, rubber label, 3D label and other logos! It makes you feel confident and comfortable while stretching, the bands can go anywhere with you, for workouts at home, outdoor, office, gym or when travelling.