J Lindeberg Avi Windbreaker Zip Neck Sweater The J Lindeberg Avi is a new hybrid knit sweater that offers you protection from the elements allowing you to play your best golf as the weather turns nasty.. It features a 4-way stretch lining that allows for full range of motion and unrestricted golf swings. This stunning 1/4 zip sweater has been constructed from Mulesing free merino wool and is extremely comfortable to wear for extended periods of time. FEATURES AT A GLANCE Fully fashion details Quarter Zip Silicone Bridge logo at chest and back of neck Shell made of merino wool Mulesing free merino wool  Fully lined with woven windbreaker fabric