TheTri-Tec Performance Base Layer Quarter Zip Shirt by Drake is a hybrid fabric design that creates three different zone that provide greater warmth where it is needed most and greatest breathability where it is needed. Made of 92% polyester 8% spandex with moisture wicking finish and anti-microbial properties. The Tri-Tec Performance Base layer combines EST MST and LST base layer fabric weights in distinct temperate zones. LST (10 ounce material) on torso and tops or arms and MST (8 ounce material) on fronts of shoulders forearms and side kidney area. EST technology (5 ounces material) is under arms and on wrists. A great all season layering staple.

Features:

• Tri-Tec is a combination of LST MST and EST
• LST on torso and tops of arms
• MST on fronts of shoulders forearms and side kidney area
• EST under arms and on wrists
• 4-way stretch
• Anti-microbial
• Deep quarter zip neck
• Vertical zippered chest pocket
• Made of 92% polyester and 8% spandex
• Moisture wicking finish and anti-microbial technology

EST (Early Season Technology) - The EST (Early Season Technology) Series is designed for warmer weather where you don’t want to overdress but protection from the elements is still required. The EST line consists of options to manage moisture prevent overheating and even waterproof/breathable outerwear built for mild early season temperatures.

MST (Mid-Season Technology) - The MST (Mid-Season Technology) Series is built to handle the unpredictable days in the middle of the season. The MST line consists of different options to suit your hunting style such as fleece-lined waterproof outerwear windproof layers and versatile insulating layers to keep you warm without adding bulk.

LST (Late Season Technology) - The LST (Late Season Technology) Series is designed for those miserable winter days that only a waterfowl hunter could love. The LST line consists of several options of 100% waterproof/windproof/breathable insulated outerwear to protect you from the harshest hunting conditions as well as goose-down insulated outwear for maximum warmth.