• Core warmth is critical, and the arm surface is used to disperse excess body heat.So that your arms can be free to work and not bulky.
• Collar can be worn up or down, to accommodate style of shirts.Quick to wear and matches other items perfectly.
• It's so light and not bulky, easy to work great over a simply long sleeve shirt.Perfect for spring daily wear.
• They are the perfect thinness for chilly days when a heavy coat is too much, suitable for running, jogging, hiking, fishing, cycling, camping, mountain climbing and other outdoor sports.
• Please refer to size chart before ordering: M-Length:28.0"/Chest: 38.6"/ L-Length: 28.7"/Chest: 40.6"/ XL-Length: 29.5"/Chest: 42.5"/ XXL-Length: 30.3"/Chest: 44.9"