Polyurethane has become the most popular sole
material in the Rivers range of shoes. Polyurethane is a compound that consists of many
tiny air bubbles to provide unbeatable shock absorption and durability. Different
densities of polyurethane can be achieved by varying the amount of air bubbles in the
compound, which will vary a sole's shock absorption and durability capacity.
Thermo Plastic Rubber
Rivers Thermo Plastic Rubber soles are produced
by compounding and moulding rubber granules of solid raw material. Rivers use only the
highest quality materials in their T.P.R. soles. They do not use shredded old car
tyres which is common in this type of sole. T.P.R. is renowned for its slip resistance and
Nitrol Polyvinyl Chloride
Nitrol Polyvinyl Chloride or P.V.C. has
extremely good durability and reasonable slip resistance. A common problem for many P.V.C.
soles is stickiness under hot conditions. Rivers have added nitrol to their sole
compound to eradicate this problem.
Rivers use a Latex Rubber that is naturally
soft. This old fashion material gives it great flexibility as well as excellent
bounce. It has good shock absorption and excellent surface grip. The sign of the
rubber being of a high quality can be determined by the aroma of the sole.
Ethyl Vinyl Acetate
Ethyl Vinyl Acetate or E.V.A. is one of the best
shock absorption materials available today. This is the reason why all the major top-line
brand joggers use this material due to the great combination of shock absorption with the
light weight of the sole.
What can we say? Leather is
Leather. It does not wear as well as the rubber compound soles, and certainly does
not have good slip resistance or shock absorption, but many people still love to have the
old-fashioned feel of a leather sole.