The isomeric state of 16 N was studied using the 16 N g,m (d, 3 He) proton-removal reactions at 11.8 MeV/u in inverse kinematics. The 16 N beam, of which 25% was in the isomeric state, was produced using the ATLAS in-fight system and delivered to the HELIOS spectrometer, which was used to analyze the 3 He ions from the (d, 3 He) reactions. The simultaneous measurement of reactions on both the ground and isomeric states, reduced the systematic uncertainties from the experiment and in the analysis. A direct and reliable comparison of the relative spectroscopic factors was made based on a Distorted-Wave Born Approximation approach. The experimental results suggest that the isomeric state of 16 N is an excited neutron-halo state. The results can be understood through calculations using a Woods-Saxon potential model, which captures the effects of weak-binding.