Phosphenes

Phosphenes is the grown up name of those cool shapes and colours that happen when you close your  eyes tightly and rub them with your hands. When I was a kid, I loved rubbing my eyes, oohing and aahing over the kaleidoscope effect it created and then trying to open my eyes quickly enough to see all the colours, shapes and sparkles before they disappear. This yarn with its hint of sparkle reminds me of phosphenes and the stitch pattern was chosen to particularly play up the quick pops of colour that happen as you knit with it. 

Phosphenes is worked cuff down starting with a tubular cast on (if you tend to cast on tightly, consider using larger needles for the cast on), a heel flap and gussets and ends with a short row toe that is grafted closed with Kitchener stitch.

The pattern is graded for 5 circumferences and the foot length is customisable.