ScentBlocker Women's S3 Artic Shirt Black Large. S3 technology uses silver ions to neutralize odor causing bacteria. 4 Direction Stretch ensures comfort and mobility. Thumbholes make layering easy. Pullover style with 1/4 zip front. 2.5" collar works to keep elements out. System Layer One. Specifications for ScentBlocker Womens S3 Artic Shirts: Manufacturer: ScentBlocker Men's Clothing Size: Large Age Group: Adults Apparel Fit: Active Color: Black Package Contents: ScentBlocker Womens S3 Artic Shirts ScentBlocker SASL: Womens S3 Artic Shirt Black Large