Solstice eFire Women Long-Sleeves Base-Layer Shirt

KLIM Solstice eFire Shirt

Heated Women’s Base Layer for All-Season Riding

Built for cold. Designed for women. Ready for anything.

The KLIM Solstice eFire Shirt takes one of the most versatile women’s base layers and adds integrated heating technology for ultimate cold-weather performance. Designed specifically for female riders, it delivers warmth, breathability, and comfort in a low-bulk system that works seamlessly with your riding gear.

From freezing mornings to full winter rides — this is your foundation layer.

Targeted Heating System

Strategically placed heating panels keep your core warm without overheating.

• 1 horizontal heat panel on upper chest
• 2 vertical heat panels on upper back
• Designed specifically for the female body

Consistent warmth where it matters most.

Adjustable Heat Control

Easily control your temperature while riding.

• 3 heat modes: Low / Medium / High
• LED color indicators:
  • Green = Low
  • Blue = Medium
  • Red = High
• Chest-mounted control button (easy access, even with gear)

Battery Performance:

• Up to 8 hours on Low
• Up to 3.5 hours on Medium
• Up to 2.5 hours on High

Powered by a USB-C rechargeable battery with dedicated internal pocket.

Built for Layering

The Solstice eFire is engineered to integrate perfectly with your riding system.

• Designed for use with KLIM base layers and outerwear
• Low-profile construction for minimal bulk
• Ideal under mid-layers and GORE-TEX shells

Warmth without restriction.

Advanced Base Layer Performance

Even without heat, this shirt performs as a premium base layer.

• Moisture-wicking and fast-drying
• Highly breathable
• Anti-microbial fabric
• Gridded fabric structure to trap heat

Keeps you dry and comfortable during long rides.

Comfort & Mobility

Built for all-day wear and movement.

• Stretch poly-spandex construction
• Flat, low-profile seams
• Lightweight underarm gussets for mobility and airflow
• Convertible cuffs (thumbhole or standard)

Moves naturally with your body.

Practical Features

• Internal wire routing for comfort
• Hidden zippered battery pocket
• Washer & dryer safe (battery removed)
• Replacement batteries available

The KLIM Solstice eFire Shirt delivers advanced heating, comfort, and performance in a women-specific design — making it an essential base layer for riders who take on cold conditions without slowing down.