Mizuno helix long sleeve t shirt mens the mens mizuno helix long sleeve t shirt has been crafted with a tubular seamless construction that allows for greater freedom of movement while the curpo yarn offers a more comfortable and cooling fit this mizuno running top also benefits from long sleeves and a crew neck collar for added comfort while the flat lock seams to the sleeves and shoulders help to reduce skin irritation and chaffing completed with the mizuno branding to the chest mens