250g Heavyweight Merino Wool Base Layer Thermal Underwear - Thermal Warmth Outdoor Sports Top & Bottom
ZEALWOOD 16.5μm Women's Long-Sleeve Merino Wool Base Layer (250g)
Step into all-day warmth and effortless comfort with the ZEALWOOD 16.5μm Merino Wool Long-Sleeve. At 250g mid-heavy weight and crafted from ultra-fine 16.5-micron Merino, this women's base layer delivers exceptional softness, natural warmth, and odour resistance — built for cooler adventures and everyday layering in a relaxed, true-to-body standard fit.
✨ Why You'll Love It
🐑 Ultra-Fine 16.5μm Merino Wool
One of the finest Merino grades available — incredibly soft against bare skin with zero itch. 100% Merino wool construction (excluding stitching) for pure, uncompromised performance.
🌡️ Superior Thermal Regulation
The natural crimp of Merino fibres creates insulating air pockets that lock in warmth during cold conditions while still breathing efficiently during high-output activity — ideal for cooler climates and shoulder seasons.
💧 Moisture-Wicking & Odour-Resistant
Naturally antimicrobial fibres actively resist odour buildup while wicking sweat away from your skin — stay fresh and dry through multi-day trips without frequent washing.
👗 Women's Standard Fit
A relaxed, true-to-body silhouette that sits comfortably without clinging — easy to layer over thermals or under mid-layers and shells, with freedom of movement for all-day wear.
🌍 Versatile Performance
From mountain hikes and ski touring to travel days and cold-weather commutes, this base layer adapts seamlessly to any activity and environment.
📋 Product Specifications
| Feature | Details |
| Material | 100% Merino Wool (excluding stitches) |
| Wool Grade | 16.5 micron (Ultra-Fine) |
| Fabric Weight | 250 g/m² |
| Fit | Women's Standard Fit — Asian sizing |
| Layer Type | Base Layer |
| Comfort Temperature | -10°C to 10°C |
| Best For | Hiking, Ski Touring, Cold-Weather Travel, Mountain Climbing, Everyday Layering |
| Colors Available | Gray, Purple |
📏 Size Guide — Women's Standard Fit (Asian Sizing)
This garment is designed for a relaxed base layer fit with comfortable room for movement. If you prefer a closer-to-body feel, we recommend sizing down.
| Size | Bust (cm) | Waist (cm) | Hip (cm) | Body Height (cm) | Recommended Body Weight (kg) |
| S | 82 – 86 | 64 – 68 | 88 – 92 | 155 – 162 | 45 – 53 |
| M | 87 – 91 | 69 – 73 | 93 – 97 | 160 – 167 | 53 – 61 |
| L | 92 – 96 | 74 – 78 | 98 – 102 | 165 – 172 | 60 – 68 |
* All measurements refer to body measurements, not garment measurements. For the best fit, choose your size based on your bust measurement.