I bought GearX mock neck shirts and very disappointed by the poor neckline sewing.
The sewing was uneven and I got lots of wrinkles on my left side. It was not pretty at all.
I contacted the GearX and extremely surprised that GearX quality control level was very minimal.
They actually replied that sewing itself had no problem and stated that my neck was not thick enough.
Also, GearX under layers have black-dye-bleeding Problems.
I would not have bought black shirts If I had known them.
Mine is still bleeding after several washes.
Check this laundry care advice attached my GearX under layer.