This is a DONJA -HD bike saddle cover made of thick sheepskin. It is a 100% Dutch brand and handmade. The material is woolly sheepskin leather, and the underside is entirely made of sheepskin with an elastic band. It is one size and suitable for a standard size bike saddle. The attachment is simple. It is a lovely soft bike saddle cover to support you during bike rides because let’s face it, nobody wants saddle pain, right?