47% nylon 4% other stuff that isn't listed

11% polyester

Wonderfully ventilated

Get the latest iteration of the Sram Level brake

giving you certified protection

Shimano SH-AM503 SPD Shoes - EU 42 - Olive Do Not Ship Internationally 47% nylon 4% other stuffThe Shimano SH AM503 Mountain Bike Shoes provide performance, protection, comfort, and style for gravity riders. The SH AM503 feature a high grip rubber sole with toe and heel traction tread that improves walking capabilities. The pedal channel offers great shoe to pedal stability even when not clipped in. The robust toe cap provides additional toe protection and the high volume last creates a generous fit for all day on and off the bike comfort.