Helios featuring Soles by Michelin to equip our boots with highly advanced outsoles. Optimised specifically for warm weather climates, it is the tech forward hot weather boot born from our partnership with Michelin. Features And Benefits Fleshout perforated cowhide leather and textile upper for durability and breathability Integrated textile loop lacing system Gusseted tongue keeps dirt and debris out Padded collar for added comfort Triple bonded nylon thread used in every stitch for durability Soles by MICHELIN outsole for superior durability, traction and agility Airport friendly nylon shank Heel counter custom shaped with Back Part Molding to eliminate "break-in" discomfort Ergonomically molded thermoplastic toe box ensures ideal fit from the first wear TruFit sizing allows total fit customization for each foot by the addition or removal of TruFit spacers under the footbed AR670-1 compliant