Product details:

Radius is for cruising, with a combination of low density foam, and triple gel inserts to disperse your weight at key pressure points for maximum comfort. The Radius profile has the roundest shape through the rear section and maximum padding. The Radius profile is designed for an upright riding position; typically bikes in this category have handlebars slightly higher than the saddle, causing the rider to sit taller and requiring the most padding to support their weight.