The Bio-Leder is a premium leather grip is a perfect complement to that antique brown Brooks saddle you ordered with your Brompton or Moulton. Innovative in mould leather technology designed in co-operation with bespoke footware maker Quoc Pham. Using leather sourced in Bavaria, Germany, following strict rules regarding toxins, the Alpine raw hide leather is dyed using vegetable dyes, and no heavy metals are used in its production. The leather is ‘open pore’ and is certified hypoallergenic. Bio-Leder is available only in a single size.