Turn up the climate control on the coldest days with highly-breathable, heavyweight fleece top.Did someone call for climate control? This men´s Burton Heavyweight X Base Layer Quarter-Zip does the work with highly breathable, heavyweight fleece.Super flexible fabric works to give you all the mobility you need for a solid day of riding.And after that solid day of riding, you can still ride home with your friends thanks to the stink-resistant finish.Features:Slim fit sits close to the body, with room for the garment to move with you.Heavyweight 300 Living Lining® provides consistent temperature regulation without adding bulk or weight.Four-way stretch fabrication for enhanced mobility.Quick drying and highly breathable.Chafe-free chin guard and softlock seams for added comfort.bluesign® approved materials use only safe chemicals and reduce impact on both humans and the planet during manufacturing.