“Having a couple of the first generation of Igloos, there's some subtle changes between them & the current one. Contrast colour on the cuffs & pockets, vent eyelets in the armpits but the biggest one for me is the membrane. It makes the garment slightly less stretchy-feeling, but I've just been outside in the rain and while it was heavy enough to have gone through the earlier ones, this one hasn't let it through.”