Items purchased while on clearance are not eligible for returns, refund, or store credit. Simms – ExStream Core Top – Built for cold-weather angling. The Simms ExStream Core Top is designed to keep you warm during frigid mornings and late-season fishing missions. Featuring a 2-layer weave that traps body heat, this technical top offers excellent insulation without restricting movement. Its athletic cut ensures a full range of motion for casting, while thumbhole cuffs keep sleeves securely in place when layering or reaching. An integrated hood and built-in neck gaiter provide extra protection against biting winds and cold spray, making it an all-in-one piece for harsh conditions. Finished with flatlock seams for long-lasting comfort and durability, the ExStream Core Top is built to help anglers push through the coldest days on the water. Shop Drift Outfitters online or in-store in Toronto for expert advice and fast shipping across Canada. 2-layer Toray body fabric 100% polyester mesh Ergonomic hood and integrated neck gaiter Anti-fog mesh built into gaiter Articulated sleeves with thumbholes Flatlock seams