Outlet - Britax Dualfix i-Sense in Atlantic GreenBritax Rmer Dualfix iSense i Size Car Seat Stock Clearance, Atlantic Green Brand new and sealed in its original packaging, this Britax Rmer Dualfix iSense is available at a reduced price as part of a stock clearance. The Dualfix iSense is an i Size car seat suitable for children from 61105 cm (approximately 3 months to 4 years, up to 18 kg). It's the natural follow on seat within the Britax iSense modular system designed to click straight onto the