Description from Spunmag.com:

This yarn is super stretchy, calculating gauge can be tricky, but erring on the smaller side works well because it has so much give and the top is meant to be body-hugging. Moreover, the metallic thread in the Patons Brilliant actually polished and buffed my bamboo needles! This pattern is a medium/large size and worked well with four different body types. For less stretch, use a yarn without polyamide or nylon, in the same gauge.