DetailSweat wicking and fast drying Flatlock seam construction to reduce pressure pointsFabric + InnovationBody: TecLayr - 46% Polyester, 46% Recycled Nylon, 8% Spandex Quick-drying polyester with built-in moisture management Nylon fibers for a cooling touch Bluesign certified ImportedFit + Sizing4'' wide. Snug, comfortable fitCare + Washing Machine wash cold Do not bleach Iron low Tumble dry low Do not dry-clean