1. How can you gently remove pills from a sweater? The unavoidable truth is all sweaters will pill just by wearing or cleaning them. You can remove pills easily by holding the sweater flat with one hand and slicing off pills one at a time with a simple razor, like a Bic. You can also buy a manual pill remover. 2. How often should you wash a sweater? Did the sweater pick up germs or dirt? That warrants a washing. A good rule of thumb is to wash every four wears, unless you spill, sweat or are around smoke.Product name:intarsia long sleeve wool sweater Material:95% Wool, 3% Cotton, 2% Nylon relaxed fit pelvic length crew neck Reversed knit cat artwork by artist Karen Kilimnick Detail with loose threads Fit & style Perfect for everyday casual wear, workout, school, work, vacation, etc. An Ideal Gift for Your Boyfriend or Families.