Castelli 3t team bibshortcastellis 3t team bib shorts are made of affinity lycra fabric to give you outstanding stretch and rebound for an exceptional fit and comfort as well as affinity blc textured fabric on the legs for better aerodynamics comfort and breathabilitythese bibshorts feature giro air engineered mesh grippers which provide more stretch and distribute the compression over a larger area castellis kiss air seat pad for all day comfort and mesh bib straps for added comfort and bre