NWT Simple, quality bib shorts to complement any ride, the main panels found on the Rapha Core Bib Shorts use a dense-knit fabric for support and modesty and laser-cut leg grippers lined with soft silicone for a close, comfortable fit. The bib section of the Rapha Core Bib Shorts uses high-stretch material, machined efficiently for even distribution of stretch and to accommodate longer torsos. Flatlock seams are positioned carefully throughout to hold the shorts in place without chafing