Performance that moves with you. Designed for cold to very cold conditions and medium- to high-activity levels, the ColdPrufA(R) Style 89A Performance Crew is a versatile base layer that can also be worn comfortably on its own. Its athletic, close-to-body fit supports mobility and layering without bulk. The single-layer jersey knit fabric blends ColdPrufA(R) Technical Fiber Polyester with Spandex for stretch, wicking performance, and long-term shape retention. SILVADUR(TM) Intelligent Freshness technology helps minimize odor on the fabric, making this top an excellent choice for multi-day wear or high-output pursuits. Best For Cold to very cold weather Medium to high activity levels Winter sports and outdoor adventures Base layer or standalone wear Key Features Performance Fabric: Single-layer jersey knit with stretch for a close, athletic fit. Odor Control: SILVADUR(TM) Intelligent Freshness technology minimizes odor buildup on the fabric. Moisture Management: Wicks sweat and dries quickly to help maintain comfort. UPF 50+ Rating: Provides excellent protection from the sun when worn on its own. Comfort Construction: Flat seams help reduce chafing, and tagless labeling prevents irritation. Functional Fit: Drop-tail hem maintains coverage during movement. Specifications Fabric Weight: 5.25 oz Fiber Content: 85% ColdPrufA(R) Technical Fiber Polyester with SILVADUR(TM) / 15% Spandex Neckline: Crew neck Sleeves: Set-in long sleeves Style Number: 89A Fit: ColdPrufA(R) Athletic Fit (close, moves-with-you fit) Care Instructions Machine wash warm with like colors Use only non-chlorine bleach when needed Tumble dry low and remove promptly Low iron if necessary