জি ভায়া, আমি সুনিশ্চিত, মানে মোটা দাগে - in a broader sense. এই ব্যাপারে বৈজ্ঞানিক ব্যাখ্যা অনেকটা নিম্নরূপ -
The vast majority of condoms consist of rubber latex (80%). Other materials used are synthetic (mostly polyurethane and polyisoprene) (15%) and natural membrane (mostly lamb intestinal cecum, 5%). Plastics and rubber materials are both made from the same families of polymers. The polymers are mixed with a complex blend of materials known as additives. Rubbers are elastomers, these are polymers with an elastic property. This elasticity differentiates rubbers from plastics. Though rubber differs from plastic but it is not eco-friendly, as it comes from same polymer family.