Meet the Heatwave Thermalwear Women’s Thermal Underwear Set — a lined, cotton-rich long sleeve top and bottom designed to be your warm, breathable base layer for winter outdoor sports and everyday cold-weather comfort. Engineered with advanced insulating yarn and a soft brushed interior, this lightweight set locks in heat without bulk, delivers all-day comfort under layers, and moves with you from ski slopes to city commutes. Available in classic colors and a full size range, it’s the cozy, high-performance baselayer you’ll reach for all season.
Key Feature 1: Advanced Insulating Yarn
Description: Crafted with high-performance insulating yarn and a soft, brushed inner surface that traps more warm air close to the skin. The lining enhances thermal retention while remaining breathable for active wear.
Benefits: Powerful heat retention in sub-zero conditions with excellent moisture management, keeping you warm and comfortable during skiing, hiking, or daily commutes—without overheating.
Key Feature 2: Comfort Fit Ribbed Construction
Description: A flexible ribbed knit conforms to your body’s contours for a snug-yet-stretchy fit. The top is side seam-free to minimize friction and bulk under outerwear, enhancing comfort for long wear.
Benefits: Moves naturally with your body, reduces irritation, and layers smoothly under jackets and snow gear, making it ideal for high-mobility winter activities and all-day wear.
Key Feature 3: Cotton-Rich Material
Description: Made from cotton and polyester for a breathable, durable, and soft touch against the skin. The cotton-rich blend wicks moisture and provides long-lasting comfort.
Benefits: Minimizes sweat and skin irritation while maintaining warmth, delivering a cozy feel for both active pursuits and relaxed, everyday layering.
Sizes
Find your perfect fit with sizes:
- UK 10–12 (EU 38–40)
- UK 14–16 (EU 42–44)
- UK 18–20 (EU 46–48)
- UK 22–24 (EU 50–52)
The ribbed stretch accommodates movement and layers comfortably under your winter apparel.
Colours Or Style Options
- White – Clean, classic, and perfect under light-colored outerwear.
- Marl Grey – Versatile, sporty look for gym-to-trail wear.
- Black – Sleek and discreet under any outfit.
Care Guide
- Machine wash at 40°C.
- Tumble dry on low to medium.
- Wash dark colours separately to preserve vibrancy.
Why Choose This Product
Warmer without bulk: Advanced insulating yarn and brushed interior deliver exceptional warmth in a lightweight profile.
Comfort-first design: Ribbed stretch with side seam-free top reduces chafing and layers smoothly.
Breathable and cotton-rich: Cotton rich for softness and airflow, ideal for active and everyday wear.
Versatile performance: Equally at home on winter trails, ski slopes, or under office attire.
Trusted quality: A customer favorite from Heatwave Thermalwear, known for durable, reliable winter baselayers.
“Surprisingly warm and super comfy—my go-to base layer for cold runs and weekend hikes.”
Additional Information
Usability: Perfect for skiing, snowboarding, hiking, running, camping, travel, or staying warm during daily commutes. Wear as a standalone lounge set indoors or as a performance base layer under outerwear.
Warranty and Support: Backed by Heatwave’s satisfaction guarantee and responsive customer support. Easy returns for peace of mind.
