Smartwool Merino 250 Base Layer Quarter-Zip Top - Size L Excellent condition --- Product Details: Merino wool helps maintain comfort whether the climate is warm, cold or in-between 8 in. front zipper ventilates on demand; raised collar keeps your neck warm in the cold Shoulder panels eliminate top shoulder seams, reduce chafing and optimize comfort under pack straps Rear body seams wrap around to front to enhance fit, and sculpted side panels also enhance fit Flatlock stitching eliminates abrasion, increases comfort and enhances fit by reducing bulky seams With a UPF 50+ rating, fabric provides excellent protection against harmful ultraviolet rays