Equinoxx K2 Dyna-Thermal Top & Bottom Set

Ultimate 360° Warmth, Comfort & Mobility — Built for Harsh Cold Weather

Experience unmatched protection with the K2 Dyna-Thermal Top and Bottom Bundle—the complete cold-weather system designed to help you love the cold. This full set keeps you warm, dry, and mobile even in the harshest conditions. With advanced heat-retention technology, wind blocking, and water resistance, K2 delivers reliable performance without the bulk of heavy winter layers.

The breathable thermal fabric prevents overheating when you move from outdoors to indoors, while the ergonomic design gives you full freedom of movement for work or play.

“All my coworkers had on bulky jackets with hoodies underneath… They couldn’t believe I was out in that climate with no jacket. This is perfect for construction and doesn’t restrict movement at all.”
— Mario Jimenez (Stage 3 review, Jan. 21, 2022)

Complete 360° Thermal Protection

The K2 system offers all the proven benefits of our popular Equinoxx Stage 3 Thermal—trusted by police officers and professionals wearing body armor—but with full 360° mid-section coverage.
This bundle provides warmth from just below the waist all the way up to the neck, plus full lower-body protection with the matching thermal bottoms. No cold spots. No gaps. Just complete comfort.

Built for Demanding Outdoor Jobs

Perfect for anyone who works long hours in cold, windy, or wet conditions, including:

Postal workers & courier drivers
Traffic & school crossing guards
Cable installers & linesmen
Construction, utility & oil rig workers
Warehouse & freight handlers

“I stay warm without having to wear a coat with temperatures between 10–30°F. It’s lightweight and doesn’t hinder my mobility at all.”
— Joshua N. (Stage 3 review, Dec. 10, 2020)

Great for Outdoor Adventures

The K2 Top & Bottom Set is your go-to thermal system for:

Hunting, fishing, hiking & camping
Golf, skiing & ice skating
Bird watching, motorcycle riding, and more

Police officers and security personnel who rely on Stage 3 under body armor often choose K2 for off-duty and leisure activities in cold climates.

Why Choose the K2 Thermal Set?

Full-body warmth without bulk
Wind-blocking & water-resistant
Retains body heat while staying breathable
Lightweight with excellent mobility
Ideal for both extreme work environments and cold-weather recreation
Trusted by professionals in some of the toughest conditions

UNDERWEAR

Price

Collections

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Equinoxx K2 Dyna-Thermal Bottoms