Source — What Is 2b Hair Complete Guide. What Is 2B Hair? Standing in front of the mirror trying to figure out why your hair bends in an S but doesn't curl? That's 2b hair . It's the middle ground (more defined than 2A's loose bend)but missing the tight spirals of 2C. Picture it this way: straight roots, wavy lengths. Flat at the scalp for a few inches, then an S-wave kicks in around ear level.
That S-wave is the defining trait. Straight at the root. I've heard women describe their 2B texture as 'beachy but not deliberate.' A few quick identifiers that point to 2B: Your roots are mostly straight, especially the top layer.The S-wave pattern shows up around ear level and runs to the ends.Frizz tends to show up at the crown and outer edges, not all over.You can brush it straight, and it will bounce back to wavy once wet. That frizz part? How to Tell If You Have 2B Hair vs. 2A Hair You can usually tell 2B hair from 2A by looking at the wave shape as it dries naturally. Wave Pattern - The S-Curve Test Texture and Volume Where It Counts.