The main insulation zone and a buffer between warm skin and cold air. To reduce heat loss. Comfort, warmth and maximum safety. To provide maximum protection while allowing moisture to escape. Defence against the worst elements coupled with complete freedom of movement.
Gill adapts to a wide range of conditions.
If it's warm and windy, omit the 2nd insulating layer. If it's cool with light winds, drop the 3rd protective dimension. Layers can also be removed during periods of high activity, then replaced as the pace slackens. The Gill Interactive Climate Conrole System - perfectly tuned to suit you. 1998 heralds the re-launch of the Splashdown Brand.