WHILE SUPPLIES LAST: S3 Racing Team Trials pants are made of a polyester-lycra elastic combination. These pants are comfortable and resistant to tearing and ripping making them of superb quality. Back pocket for smartphone that is water and dirt proof and a big front pocket for anything else you might need to carry. Light and comfortable, these pants also include the CE homologated knee guard like the PROTEC pants and the adjustable belt. Please refer to the sizing guide below before ordering.