The Merlin Mason II D30 Waterproof Denim Riding Jeans are built with durable, high-spec materials to give you reliable protection and lasting comfort. These jeans feature a Coolmax Cordura outer for strength and moisture control, a 10k/10k Reissa waterproof membrane, and pre-fitted D3O Ghost armour at the hips and knees. Here s a detailed look at the key features and how they work to support you on the road: Cordura Cotton Coolmax Performance Denim: uses abrasion-resistant Cordura fibres blended with moisture-wicking Coolmax to provide strength and sweat control, which keeps you drier, more comfortable and better protected across a wide range of riding conditions. Reissa 10k/10k Waterproof, Breathable Membrane: features a lightweight internal lining with 10,000mm waterproofing and 10,000g/m²/24h breathability that prevents rain penetration while allowing heat and moisture to escape, helping you stay dry without feeling clammy during wet or humid rides. D3O Ghost Knee and Hip Protectors