Custom Thermal Base Layer Tops
Insulating thermal tops designed to be worn under heated jackets, ski gear, and outdoor apparel. Merino wool and synthetic options for cold-weather teams and organizations. Custom branded worldwide.
Thermal Top Styles
Three thermal base layer options for different cold-weather conditions. Each is designed to regulate body temperature and wick moisture during extended outdoor wear.
Merino Wool Thermal
100% merino wool with natural temperature regulation and odor resistance. The premium choice for extended wear in mining, expeditions, and cold-weather field operations.
Synthetic Thermal
Polyester microfleece that dries quickly and withstands heavy-duty use. The workhorse option for construction crews, motorcycle fleets, and active outdoor teams.
Silk-Weight Thermal
Polyester-silk blend with ultra-lightweight, second-skin fit. Ideal as a first layer under ski gear or heated jackets where minimal bulk is critical.
Thermal Top Specifications
Side-by-side comparison of all three thermal base layer styles to help you choose the right fabric for your team.
| Feature | Merino | Synthetic | Silk-Weight |
|---|---|---|---|
| Material | Merino Wool | Polyester Microfleece | Poly-Silk |
| Weight | 200g | 180g | 150g |
| Warmth | High | Medium | Light |
| Odor Resistant | Yes | No | No |
| Quick Dry | Moderate | Fast | Fast |
| Best For | Extended wear | Active work | Layering |
Industries We Serve
Thermal base layers for teams that work and play in cold environments, from underground mines to mountain slopes.
Why Choose RB Tshirt & Advertising
We combine thermal fabric technology with custom branding for cold-weather teams across the Philippines and worldwide.
Thermal Technology
Premium merino wool, polyester microfleece, and poly-silk blends engineered for maximum insulation with minimal bulk. Each fabric is tested for warmth retention and moisture management.
Custom Branding
Your company logo embroidered, DTF printed, or silkscreened on every thermal top. Full-color branding on the chest, back, or sleeve with free digital mockup before production.
Global Shipping
We ship custom thermal base layers worldwide with competitive FOB pricing. Volume discounts for mining companies, construction firms, ski resorts, and government agencies.
Custom Thermal Base Layer Tops
Thermal tops are the foundation of cold-weather layering. Our range covers merino wool for natural temperature regulation, synthetic fleece for quick-drying durability, and silk-weight for ultra-lightweight layering.
Merino Wool Thermal
100% merino wool with natural temperature regulation and odor resistance. Soft, breathable, and comfortable for extended wear. Weight: 200 grams. The premium choice for mining crews, ski resort staff, and outdoor expedition teams.
Synthetic Thermal
Polyester microfleece with quick-drying and durable construction. Machine washable and easy care. Weight: 180 grams. The practical choice for construction crews and active work teams.
Silk-Weight Thermal
Polyester-silk blend with ultra-lightweight second-skin fit. Ideal as a first layer under heated jackets or ski gear. Weight: 150 grams. The minimalist choice for teams that need warmth without bulk.
Custom Branding
All thermal tops support embroidery and heat-transfer printing. Custom color matching for team colors. Mix sizes freely across orders.
Frequently Asked Questions
Quick answers about ordering custom thermal base layer tops.
What fabric composition are the thermal tops made from?
We offer three fabric options: 100% merino wool (200g), polyester microfleece (180g), and a polyester-silk blend (150g). Each is selected for specific cold-weather performance characteristics.
How warm are the thermal base layers?
Merino wool provides the highest warmth rating and is best for extended cold exposure. Synthetic microfleece offers medium warmth ideal for active work. Silk-weight provides light insulation perfect for layering under heated jackets or ski gear.
What sizes are available?
Thermal tops are available in XS through 3XL. We also offer custom sizing for bulk orders. A size chart is provided with every quote to help your team select the right fit.
Are the thermal tops machine washable?
Yes. Synthetic and silk-weight tops are fully machine washable on a gentle cycle. Merino wool tops can be machine washed on a wool/delicate setting or hand washed. All fabrics retain their thermal properties after repeated washes.
What is the minimum order quantity?
We handle orders from 1 piece up to bulk. Pricing is most competitive at 100+ pieces. Contact us for a custom quote based on your team size and fabric preference.
Where can you place our company logo?
We embroider, DTF print, or silkscreen your logo on the left chest, right chest, upper back, or sleeve. We create a free digital mockup before production so you can approve the placement and sizing.
Browse Base Layers
Pick the base layer that fits your team. Every option is fully customizable with your company logo.
All Base Layers
Browse thermal tops, bottoms, and compression gear. Full product line for cold-weather teams.
View AllThermal Bottoms
Insulating thermal leggings and long johns. Merino wool and synthetic options for full lower-body warmth.
View BottomsCompression Tops
Performance compression tops for muscle support and recovery. Moisture-wicking fabrics for active teams.
View TopsCompression Bottoms
Compression leggings and shorts for athletic performance. Graduated compression for improved circulation.
View BottomsContact Us for Thermal Top Quotes
Send your team size, fabric preference, and logo file. Our thermal apparel team replies with itemized pricing and free digital mockup within 2 hours.
2-hour mockup + quote SLA for thermal apparel inquiries.