Derby waterproof high-tech big blue BAY Mallorca

Other Bay Mallorca high tech conditions:

• Biodegradable membrane.

• Damp-proof  laces

• Damp-proof stitching thread

• High Polyurethane glues . Less toxic. High biodegradability factor.

• Waterproof inside insole.

• Polyurethane sponge middle insole

• Leather insole

• Damp-proof upper leather

• Completely Made In Spain