Gehring-Tricot Warp Knit Fabrics Gehring-Tricot designs and manufactures warp knits, circular knits, and stretch woven fabrics for medicine, sports, safety, aerospace, apparel, defense and more. Gehring-Tricot designs and manufactures warp knits, circular knits, and stretch woven fabrics for medicine, sports, safety, aerospace, apparel, defense and more.