ProWikMax™ Thermal Compression Shirt — Made in the USA

The ProWikMax™ Thermal Compression Shirt is designed to deliver dependable warmth and mobility in cold conditions without the bulk of traditional thermal layers. Proudly made in the USA by WSI Sports, this compression-style top combines insulation, stretch, and comfort—making it an ideal base layer for winter activity, work, or everyday wear.

Why We Chose This at My American Goods

At My American Goods, we curate American-made apparel that performs where it matters most. This thermal compression shirt stood out for its ability to retain warmth across a wide temperature range while maintaining a streamlined, comfortable fit that moves naturally with your body.

Warmth Without Bulk

Engineered to perform in temperatures from -10°F to 50°F, this thermal layer provides insulation without feeling heavy or restrictive. The compression fit supports warmth retention while allowing for easy layering under outerwear.

• Ideal for cold-weather training, outdoor work, and winter layering

• Designed to keep you warm without excessive thickness

• Comfortable for extended wear

Built for Movement & Comfort

Thoughtful construction ensures flexibility and ease of movement in active or everyday settings:

• 4-way stretch fabric for flexibility and durability

• Semi-mock collar for added warmth and coverage at the neck

• Compression fit that stays close to the body without restricting motion

Easy Care, Long-Lasting Wear

Designed for real-world use, this shirt is easy to care for while maintaining its performance over time.

American-Made Performance You Can Trust

WSI Sports has been manufacturing performance apparel in the United States for decades. When you choose the ProWikMax™ Thermal Compression Shirt through My American Goods, you’re supporting American jobs while investing in reliable cold-weather gear built to last.