This is a 100% Blue Faced Leicester Superwash Wool in a Sport weight. BFL was the first base yarn I dyed for sale because of the incredibly luminous way it takes color. It far surpasses any other wool for the combination of shine, stitch definition and durability it brings to your knitting.
This yarn is somewhere between a traditional Sport weight and a traditional DK weight, so you should be able to get gauge for patterns in either range. Because its yardage is less than many of the sport weight yarns, be careful to calculate your needs if you are substituting this yarn for another sport weight and purchase enough.
Superwash Wool makes this yarn a plus if you are knitting hats, mittens or sweaters for small children or um, large children like my husband, who occasionally tosses a hand knit scarf in the washing machine.