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Main page » Men » Functional underwear » Long sleeve tops » SIXS Functional suit STX HN R V2 - black-carbon
SIXS Functional suit STX HN R V2 - black-carbon
(Product No.: MC-F33271-999-3XL/4XL)
The SIXS 4-Seasons Functional Suit is the ideal companion for demanding activities. With its seamless construction, reinforced abrasion zones, and additional support in the groin area, it guarantees maximum comfort and support. The advanced Carbon Underwear Fabric® ensures effective sweat management and thermal regulation – your skin stays dry, even during the most intense movement. Breathable zones allow for quick moisture wicking, while antibacterial properties prevent unpleasant odors. Perfect for any adventure – made from high-quality Italian material.
Technical Details:
- Breathable and quick-drying
- Additional support in the groin area
- Reinforcements in abrasion zones for more durability
- Seamless technology for a perfect fit
- Effective sweat management and thermal regulation
- Antibacterial fabric prevents bad odors
Composition:
- 74% Polypropylene
- 16% Polyamide
- 5% Elastane
- 5% Carbon fiber
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SIXS Size Chart
Fit-und-Warm carries SIXS mainly for functional shirts/base layers and socks. SIXS uses product-specific size charts for base layers and emphasizes body height as a particularly important selection measurement.
Socks – Current Crew Socks
| EU | US Men | US Women | UK | Foot range |
|---|---|---|---|---|
| 35–38 | 3.5–6 | 5–7.5 | 2.5–5 | 23–26 cm |
| 39–42 | 7–8.5 | 8.5–10 | 5.5–9 | 26–28 cm |
| 43–46 | 9–12 | 10.5–14 | 9.5–11 | 28.5–30 cm |
| 47–49 | 13–14.5 | 14.5–16 | over 11.5 | over 30.5 cm |
Older / Alternative SIXS Sock Labelling I–III
| SIXS | EU | US Men | US Women | UK | Foot range |
|---|---|---|---|---|---|
| I | 36–39 | 4–6.5 | 5–7.5 | 3–5.5 | 23–26 cm |
| II | 40–43 | 7–9.5 | 8–10.5 | 6–9 | 26.5–28.5 cm |
| III | 44–47 | 10–13 | 11–14 | 9.5–12 | over 29 cm |
Base Layers / Functional Shirts
| Product family | Official SIXS sizing logic |
|---|---|
| 4 Seasons / Light BT / Warm CU | Use the size chart directly on the product. |
| Most important measurement | According to SIXS, body height is particularly important. |
| Between sizes | Choose according to body height and product-specific fit. |
A universal numerical apparel master chart is deliberately not built from third-party data because SIXS itself uses a specific size chart per product.
Assortment check: Fit-und-Warm SIXS brand page. Manufacturer sources: official SIXS/SIX2 Crew Sock product pages and size-guide guidance for base layers. Research checked on 20 August 2026.