here is my bolero I just made from polar fleece. It's a butterick B4551 and it's Big Orange. I lapped the back and shoulder seams, made the sleeves extra long, and left the edges unfinished. I may add a fastener or 2 later.
Beautiful - I wish I could sew.
The most effective way to do it, is to do it.
Amelia Earhart
2005 Trek 5000 road/Avocet 02 40W
2006 Colnago C50 road/SSM Atola
2005 SC Juliana SL mtb/WTB Laser V