Latex is the most common material for condoms and dental dams, and polyisoprene condoms are ideal for those with latex allergies or sensitivities. Both latex and polyisoprene condoms are compatible with silicone and water-based lubricants, but should never be used with oil-based or petroleum products as they rapidly degrade the material, causing breakage.
Nominal width is the width of the base of the condom when laid flat. Wearing a poor-fitting condom can result in reduced sensation, discomfort, and a risk of slippage. A small difference in fit can make a big difference in pleasure!