Lightweight Reflective Survival Jacket - Reflects Heat for Emergencies & Survival Retains heat from the head, torso, and arms. Wind & Waterproof. Full size: Chest: 50 (measured from armpit, all the way around): Length 35 (measured from bottom of hood); Armlength: 32 (measured from edge of hood). Four re-sealable tape closures for front. Weight: 1.7 ounces packed. Dimensions packed: 3.25 x 4.75 x 0.75