NAME: BOWER-ab-HI-LACE COLOR: Blue x Ivory MATERIAL: UPPER SHELL / Synthetic fiber, Artificial leather, Rubber Brand new BOWER silhouette with 3M Thinsulate insulation, Waterproof eVent lining FOOTBED / SUICOKE EVA Antibacterial SOLE / SUICOKE original Trek outsole 3M Thinsulate Insulation (Type C) is warm yet lightweight, powerful yet thin. It helps trap body heat, while allowing moisture to escape.