loose wave bundles human hair straightening it it will go bk to its original wave pattern which is a plus. It combs out very easily and no smell. It also takes well to heat, curls ,straightening. The hair is incredibly soft and blends well with my relaxed hair. It did not have a smell to it and it’s really soft and does not tangle. The hair is soft and curls good.Hair also thick I used 3 bundles and did a sew in. The hair was very great quality it was very soft!