Gill's lightweight stretch microfleeces are super soft and close fitting, providing warmth without bulk. Fast wicking and quick drying, the i3 range is ideal when worn as a light mid layer, but can also be worn as a base layer under any of our technical waterproofs. The i4 fleece provides excellent warmth so is ideal for cooler conditions. i4 products can be worn as a warm mid-layer or as a comfortable outer layer. The i5 Crosswind line is a fully taped waterproof that can be worn as a mid-layer or an outer layer in light conditions.