When you need some insulation from your base layer, turn to the cut and sewn long sleeve mock. This product from our body base line features long sleeves and a mock collar and is made of a polyester/spandex blend using 4-way stretch fabric to ensure a perfect fit. It also offers moisture wicking and an antimicrobial finish that reduces odor-causing bacteria. Dress like a pro with PGA tour pro series. Dress like a pro with PGA tour pro series.