Seamless Clip InsWhat are the new Seamless Clip Ins? Seamless clip ins are designed with a flat, silicone based weft at the top instead of the old bulky, stitched fabric weft that traditional clip ins used to have. The difference is in how they sit on the head. Traditional clip ins have a thicker, heavier seam at the top where the hair is sewn together. That seam can create a ridge, feel bulky, and sometimes show through finer hair. Seamless clip ins are made with a