The Oslo line has a PU double density sole that is very light-weight and comfortable. Its principal technical characteristics are: an enormous resistance to tearing, abrasion, bending, hydrolysis and hydrocarbons (quite superior to those demanded by regulatory standards); high anti-slippage and grippage properties; electrical resistance and cold/heat insulation values improved through special additives; and an improvement of its performance against chemical products.

This sole has design structured with wide evacuation channels to facilitate self-cleaning. There is an impact buffer in the heel area called Shock Absorber, and an anatomical arch with a TPU insert in the waist area that facilitates flexibility.