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$45.00  $45.00




Find the system that works for your thermoregulatory needs with the Hot Chillys Warmth Factor Rating System. The Geo-Pro Zip-T is a Relaxed Fit piece, at a rating of 7, or Midweight with Medium Warmth. Stillwater Fly Shop offers free shipping and no sales tax, anywhere in the USA with no minimum order!

Formulated to look and feel as comfortable and familiar as your favorite t-shirt, our Geo-Pros do more than cotton could ever dream of.

The Hot Chillys Geo-Pro line is designed to offer a mid-weight baselayer in a cozy, relaxed fit with enough body that you can wear it out confidently by itself. MTF perspiration management, UV protection, and generous four-way mechanical stretch make this garment a force to be reckoned with when it comes to technical winter sports needs while its flat seam construction, contrast stitching, extended cuffs, and tasteful heather finishes make for a serious fashion statement on or off the mountain.

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    • Contrast flat seam construction

    • Sleek, performance-friendly rubber tip zipper

    • Zip-through collar with interior wind flap for ultimate warmth

    • Extended cuffs with thumbholes

    • Hot Chillys woven label at side seam

    Fabric Type Moisture Transfer Fibers (MTF)

    Anti-Microbial Treatment Bio-Silver Properties

    UPF Rating The Ultraviolet Protection Factor in the sun protective rating associated with the fabrics. For example, a fabric rated UPF 30 means that if 30 units of UV rays fall on the fabric, only 1 unit will pass through.

    Warmth Factor Rated 7 on our Warmth Factor Thermometer. Products with a warmth factor between 6 and 8 are some of our most popular medium warmth, midweight products designed for excellent moisture management and slightly greater warmth. Great for cold conditions and perfect for performing with you all day on the mountain.

    Product Care Machine wash in cold water on the delicate cycle. Tumble dry on low and remove promptly. Do not bleach or iron.

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