Springy and sproingy and entirely without animal fibers (specifically bamboo, cotton, and a touch of PBT), Bamboo Pop Sock is the answer for folks who are looking for a fingering-weight sock yarn for those in-between months of the year or have wool allergies! This yarn comes in a cute crazy ball put-up that also doubles as the perfect size for juggling if you happen to have a few of them! This yarn is self-striping and self-patterning, elevating even the most basic of sock patterns.