Brooks England Cambium C17 All Weather. The Cambium C17 is a comfortable saddle for bikepacking, commuting, gravel and cycle touring thanks to its durable, vulcanised-rubber top offering flexible performance and all-day weather protection. Suitable for the angled riding position, the C17 will reward you with increased performance on long journeys, flexing for natural comfort. The best bicycle seat for everything from racing to casual adventure, the C17 requires no break-in period and is always ready to ride in any weather and on all roads.