The Castelli Climber's 4.0 Jersey is designed for cyclists tackling mountain passes in summer, offering optimal comfort and excellent ventilation. Lightweight and aerodynamic, it combines breathability, UV protection, and freedom of movement for maximum performance on your climbs. Inspired by feedback from professionals, it ensures quick drying and a perfect fit, even in intense sunlight.
Main features
-
Lightweight and aerodynamic 3D fabrics for rapid cooling and drying
-
CFD placement of fabrics and seams to reduce air resistance
-
Flusso 3D fabric on the front and StradaPro 3D on the back for breathability and 90% UV protection
-
Ventilated shoulder construction to optimize airflow
-
Raw-finished elbow-length sleeves for comfort and aerodynamics
-
Elastic at the waist to hold the hem in place and support the pockets
-
Official part of the Soudal Quick-Step team kit
-
bluesign® certified fabrics for environmentally friendly production
Materials
-
Main fabrics: Flusso 3D (front), StradaPro 3D (back), polyester and elastane (exact composition not specified)
Strengths
✔️ Designed for high temperatures and alpine ascents
✔️ Rapid cooling and efficient drying thanks to lightweight 3D fabrics
✔️ Effective sun protection with 90% UV filtration on the back
✔️ Freedom of movement and comfort with elbow-length sleeves and elasticated hem
✔️ Aerodynamics and comfort based on feedback from pros and CFD
Men's Climber's 4.0 Jersey
The measurements presented are for guidance only and are based on body measurements. Actual fit may vary depending on garment cut and desired style. For optimal choice, trying on is the best option.
Important — Italian sizing
Castelli is an Italian brand and its garments run small compared to North American standards. Plan on one to two sizes up from your usual size. Don't go by the letter on the label — go by the measurements in the table below. This is normal: the brand's range goes up to 5XL.
Tops - Men
| Size | Chest (cm) | Waist (cm) |
|---|---|---|
| XS | 88 | 76 |
| S | 92 | 80 |
| M | 96 | 84 |
| L | 100 | 88 |
| XL | 105 | 93 |
| XXL | 110 | 98 |
| XXXL | 115 | 103 |
Tops - Women
| Size | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|
| XS | 79 | 63 | 87 |
| S | 84 | 68 | 92 |
| M | 89 | 73 | 97 |
| L | 94 | 78 | 102 |
| XL | 99 | 83 | 107 |
Bottoms - Men
| Size | Waist (cm) | Hips (cm) | Inseam – Regular (cm) |
|---|---|---|---|
| XS | 76 | 90 | 81 |
| S | 80 | 94 | 82 |
| M | 84 | 98 | 83 |
| L | 88 | 102 | 84 |
| XL | 93 | 107 | 85 |
| XXL | 98 | 112 | 86 |
| XXXL | 103 | 117 | 87 |
Bottoms - Women
| Size | Waist (cm) | Hips (cm) | Inseam – Regular (cm) |
|---|---|---|---|
| XS | 63 | 87 | 75 |
| S | 68 | 92 | 76 |
| M | 73 | 97 | 77 |
| L | 78 | 102 | 78 |
| XL | 83 | 107 | 79 |
Why this price?
- Samples and overstock from major brands
- New products
- Limited quantities – no restock
The Castelli Climber's 4.0 Jersey is designed for cyclists tackling mountain passes in summer, offering optimal comfort and excellent ventilation. Lightweight and aerodynamic, it combines breathability, UV protection, and freedom of movement for maximum performance on your climbs. Inspired by feedback from professionals, it ensures quick drying and a perfect fit, even in intense sunlight.
Main features
-
Lightweight and aerodynamic 3D fabrics for rapid cooling and drying
-
CFD placement of fabrics and seams to reduce air resistance
-
Flusso 3D fabric on the front and StradaPro 3D on the back for breathability and 90% UV protection
-
Ventilated shoulder construction to optimize airflow
-
Raw-finished elbow-length sleeves for comfort and aerodynamics
-
Elastic at the waist to hold the hem in place and support the pockets
-
Official part of the Soudal Quick-Step team kit
-
bluesign® certified fabrics for environmentally friendly production
Materials
-
Main fabrics: Flusso 3D (front), StradaPro 3D (back), polyester and elastane (exact composition not specified)
Strengths
✔️ Designed for high temperatures and alpine ascents
✔️ Rapid cooling and efficient drying thanks to lightweight 3D fabrics
✔️ Effective sun protection with 90% UV filtration on the back
✔️ Freedom of movement and comfort with elbow-length sleeves and elasticated hem
✔️ Aerodynamics and comfort based on feedback from pros and CFD
