Abstract: A head scarf adapted to be worn typically beneath a motorcycle helmet or other headgear includes an apron depending from its rear beneath its headband. A pocket within the apron holds cooling or warming elements against the wearer's neck to modulate wearer comfort. Thin, baffle-stitched, comfort control packs fit within the pockets, the packs containing water absorption crystals that absorb and thermally treated water without substantial dripping or rapid evaporation. A commercially available warming envelope may be substituted for convenience when appropriate. A triangular tail beneath the pocket helps hold the pocket in place against the neck, and a pony-tail aperture above the pocket prevents a wearer's long hair from interfering with the pocket's juxtaposition on the wearer's neck.