The REV'IT! Factor 4 trousers offer the essentials to those looking to cover their basic needs when enjoying life on two wheels. These textile trousers are prepared for various climate changes thanks to the inclusion of a hydratex®|Mesh G-liner (keeps you dry) and a detachable thermal liner (keeps you warm when being used, or cool, when taken out). The Factor 4 will also keep you safe during an impact via the SEEFLEX™ CE-level 2 knee and SEESMART™ CE-level 1 hip protectors. The outer shell is a combination of abrasion- resistant polyester and comfortable stretch materials; for added protection and comfort. Additionally, the grip patches on the backside of the trousers will help ensure you stay put while riding in adverse conditions.