Genus flexoris tubicularis productorum ad gas, liquidum, slurriam vel granulosam transferebat. Componitur ex interiore et exteriore globulus iacuit et osseus iacuit, et materia sceleti iacuit potest esse fibra bombica, varia synthetica fibra, fibra carbonis vel asbesto, filum chalybeum, etc. Fere, instratum et externum Flexilis caligarum fit e Flexilis naturali, styrene-butadiene rubber aut butadiene rubber; fit ex neoprene et nitrile globulus olei resistens; acid- et alcali resistens, caliga-repugnans-repugnans fit ex ethylene propylene Flexilis, globulus fluorinus vel silicone globulus, etc.

Suadeo: EPDM:S512F; S5890F; S552; S552-1; S6090WF;J-3060P;J-3080;J-3080P;JEP-3092; TER 4039; TER 4047; TER 4049;
CR: SN121;SN122;SN123;CR111;CR112;SN231;SN232;SN233;SN238;SN239;CR211;CR212;CR213;SN321;SN322;