The i3 is a performance mid-layer or expedition-weight thermal base layer for use in cold conditions. The athletic fit and flat-knit face make it ideal for use beneath outer layers. Made from Gill’s four-way stretch fleece fabric, the i3 is wind-resistant, highly breathable, fast wicking and has a great warmth-to-weight ratio.

• Lightweight anti-pill polyester microfleece
• Wind resistant
• Fast wicking finish moves moisture away from skin
• Rapid dry finish

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