The J&G will keep the rain off you, but may not keep you dry. I have one and the sweat builds up and sticks to you. Not enough heat is vented through the pit zips and back vent to keep from sweating in any weather above 40F. That's why I picked up the Showers Pass. No rain jacket will vent enough to keep sweat from building up, but the Showers Pass vents the best.