Same...worries about boil-in-the-bag I mean. Fabric is 'fairly heavyweight and water resistant coated Nylon fabric which is durable for everyday use' - so boil in the bag.
I already have a mavic goretex paclite for riding...commuting and all other non-ride-riding is a different question I think.
Relaxed fit means you can shove extra absorbent layers on. In reality i am gonna sweat buckets whatever I wear, so it doesn't really matter so much. I can see how you could get the nike one for the same as the ICNY if you're interested: myrunning.eu/Nike-SHIELD-FLASH-MAX-JACKET-Jacket-619422-010-d9586.htm