Monprene Ultra Soft Gel Series of thermoplastic elastomers features hardness from 30-60 on Shore 00 scale. MP-1238D offers 0.88 specific gravity, 300 psi tensile strength, 40 psi tensile modulus, 700% ultimate elongation, and 20 g/10 min melt index (condition C). Water-clear, haze-free products are suitable for shoe insoles, heel cups, ergonomic products, sporting goods, and medical devices.