Features:

Durable, heavyweight, 8.5-ounce cotton blend Quick Duck and 80 grams of Thinsulate™ insulation
Rain Defender durable water repellent resists rain, mist & snow
Rugged Flex durable stretch technology for ease of movement
Mighty Back bi-swing between shoulders for instant recovery
Freedom Gusset™ under the arms for increased range of motion
Flex Elbow&Trade, for less restriction