Inspired by the sweatshirts made in the '50's by Hanes and Dux Brand Manufacturing company, the swing sleeve construction provides another level of comfort not found in modern day sweatshirts. Today, some may call this sleeve the S curve or Freedom sleeve, but we just call it super comfortable! The perfect weight fleece at 10 osy ( ounces per square yard fabric weight). Contents: 80% Cotton, 20% Polyester. Product features two ply rib side gusset with flat lock stitching. Two ply hood with quality eyelets and drawcord. Sleeve cuffs and hem are durable rib for long lasting wear. The unique S curve finishing allows freedom of movement for the arms and shoulders. Once you put this sweatshirt on you begin to really appreciate the difference in comfort that Goodwear delivers! So buy this and Get Free Shipping on a Goodwear Long Sleeve Full-Zip Hooded Sweatshirt for $41.71 after instant rebate at Rakuten.com.