Great Barrier Reef is a stunning 100% mercerised Mako cotton, which is one of the finest grades of egyptian cotton. This yarn has a lovely sheen to it and is a beautiful quality. Perfect for Knitting or Crochet. These are 100 gram balls with an amazing 250 metres per ball. This yarn is classed as a light DK/Sport weight. We class it as around a 5/6 ply. Would suit patterns in Debbie Bliss Baby Cashmerino or fine cotton patterns (i.e Katia Degrade). Needle rec. 3.5 mm.