Clematis performance gear

Clematis performance gear

Rethink Your First Layer

Most basics still start with cotton. Momentum gear starts with modal fabric designed for a smoother, lighter, more breathable feel.

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  • Sweat Stomping™ Shirt - Smoke Break Gray

    Sweat Stomping™ Shirt - Smoke Break Gray

    Sweat Stomping™ Shirt - Smoke Break Gray

    $38.00
    Sale price  $38.00 Regular price 
  • Sweat Stomping™ Shirt

    Sweat Stomping™ Shirt

    Sweat Stomping™ Shirt

    $38.00
    Sale price  $38.00 Regular price 
  • 2nd Punch Cooling Briefs

    2nd Punch Cooling Briefs

    2nd Punch Cooling Briefs

    $24.00
    Sale price  $24.00 Regular price 

Featured

Momentum Series

Performance upgraded.

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Why Momentum

The first layer of success

What's underneath powers everything else.


Advanced Comfort

Softer and cooler than cotton, modal fabric feels natural all day.

 

Extreme Support

Secure where it counts, flexible where you need it.

 

Temperature Regulation

Breathable blends engineered to keep heat out and focus in.

Ditch cotton

Leave Cotton Behind (When You’re Ready).

Cotton has long been the traditional choice for undershirts, and for good reason. It's breathable, accessible, and familiar. However, when we evaluated fabrics for Momentum Series, we discovered that modal offered distinct advantages that better serve our community.

Superior Softness and Comfort

Modal feels noticeably softer against the skin than standard cotton. While premium cotton can approach modal's softness, modal achieves this naturally without requiring special processing. The result is a garment that feels luxurious from day one and maintains that comfort through repeated wear and washing.

Moisture Management

Modal's fiber structure allows it to absorb and release moisture more efficiently than cotton. This means sweat moves away from your skin faster, keeping you drier and more comfortable throughout the day.

Durability and Shape Retention

Cotton tends to shrink and lose its shape over time, especially with regular washing. Modal resists shrinkage and pilling, maintaining its form and appearance wash after wash. 

Natural Stretch and Flexibility

Modal has inherent elasticity that cotton lacks. This natural stretch means your undershirt and briefs moves with your body without feeling tight or restrictive. Providing comfort whether you're sitting at a desk or moving actively.

Made from Renewable Sources

Modal is produced from machine derived wood pulp, making it an environmentally conscious choice without compromising on performance or quality.

We chose modal because it simply performs better. 

Clematis Confidence Guarantee

Our Guarantee

Real performance gear proves itself over time, not in one day. That's why you get 60 full days to test your first pair of momentum garments in both garment types (briefs, undershirt) from Clematis Men. 

  • Your first pair fits perfectly or we'll make it right
  • Strength in every stitch 
  • We'll cover your order shipping when you spend $100 or more

Get rewarded

Earn 2 points for every $1 spent. 

Ready to stay cool under pressure? Shop now and feel the difference.

What to expect


Move forward

Designed to breathe easy and support motion from the moment your day begins.

Explore routines

Recover faster

Every day asks a lot from your body. Momentum series performance gear is made with lightweight breathable material designed with less bulk and easy layering.

Explore recovery

Rethink your first layer

Our Momentum series features modal fabric designed to feel smoother, lighter, and more breathable than cotton.

Explore technology