The myprotein mens seamless zip top is constructed from a soft touch nylon and polyester blend with contrast woven textures around the neckline this classic zip top has a physique enhancing fit with no seams preventing friction for superior movement throughout your workout soft touch nylon polyester blend model is 510 wearing size m second skin fit true to size myprotein branding works well with slim fit sweatpants fabric care composition 52 nylon 40 polyester 8 elastane