Men's Fleece Thermal Underwear Set | Base Layer Tights S–4XL
Men's Fleece Thermal Underwear Set | Base Layer Tights S–4XL
Men's Fleece Thermal Underwear Set – Warm Base Layer for Winter Sports
Stay warm and perform at your best with this men's fleece-lined thermal underwear set. Crafted from a premium cashmere and polyester blend, this knit base layer traps heat close to your body while remaining lightweight and flexible — ideal for skiing, running, cycling, gym sessions, outdoor fitness, and everyday cold-weather wear.
Key Features
- Fleece-Lined Warmth: Soft inner fleece lining provides exceptional insulation to keep you comfortable in cold conditions.
- Cashmere & Polyester Blend: Combines the luxurious softness of cashmere with the durability and stretch of polyester for all-day comfort.
- Compression Fit: Snug, form-fitting design supports muscles during activity while layering seamlessly under outerwear.
- Long Sleeve Top + Full-Length Bottoms: Complete set covers your entire body, from wrists to ankles, for full cold-weather coverage.
- Versatile Use: Perfect as a first layer for skiing, snowboarding, running, cycling, gym workouts, MMA training, and general outdoor sports.
- Sizes S–4XL: Wide size range to suit most body types.
Size Guide
⚠ Asian Sizing Notice: These garments follow Asian sizing standards, which typically run 1–2 sizes smaller than European/Western sizes. Please refer to the height and weight guide below and size up if you are between sizes.
| Size | Height | Weight |
|---|---|---|
| S | 150–160 cm | 40–50 kg |
| M | 160–170 cm | 50–60 kg |
| L | 170–175 cm | 60–70 kg |
| XL | 175–180 cm | 70–80 kg |
| 2XL | 180–185 cm | 80–90 kg |
| 3XL | 185–190 cm | 90–95 kg |
Note: Please allow 1–2 cm variance due to manual measurement. Colors may vary slightly from product images due to screen settings and lighting conditions.
Product Specifications
- Material: Cashmere & Polyester Blend
- Craft: Knit
- Sleeve Length: Long Sleeve
- Gender: Men
- Sizes Available: S / M / L / XL / 2XL / 3XL / 4XL
- No High-Concern Chemicals
- Made in Mainland China
Complete Your Active Wardrobe
Looking for more performance-ready pieces? Check out the Women's Oversized Turtleneck Cashmere Sweater – Winter Pullover or stay warm with the Women's Oversized Turtleneck Knit Pullover Sweater – Thick & Cozy.
Learn more: MedlinePlus on exercise and physical fitness
Frequently Asked Questions
Q: What is this men's thermal underwear set made of?
A: The set is crafted from a cashmere and polyester blend, knit together to create a soft, warm, and stretchy fabric. The fleece inner lining adds an extra layer of insulation, making it ideal for winter sports and cold-weather activities.
Q: How do I choose the right size for this men's base layer?
A: These thermal underwear sets follow Asian sizing, which typically runs 1–2 sizes smaller than European or Western sizes. We strongly recommend using the height and weight size guide above rather than your usual Western size. If you are between sizes or unsure, please size up for a more comfortable fit.
Q: What activities is this thermal base layer suitable for?
A: This fleece-lined base layer is designed for a wide range of cold-weather activities, including skiing, snowboarding, running, cycling, gym workouts, outdoor fitness training, and MMA/rash guard use. It also works great as an everyday thermal first layer under casual clothing during winter.
Q: Is this a full set — does it include both top and bottoms?
A: Yes, this listing includes a complete thermal underwear set comprising a long-sleeve top and full-length compression tights/bottoms, providing head-to-toe warmth as a first layer.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.