Swiss company Compressort has an extensive clothing line for trail runners. Most items are fairly close-fitting.
Size advice Compressport
First, a bit of general advice. For socks and non-compression products: choose your normal size.
For compression products: If you're between two sizes, always choose the larger size. Don't worry! You'll still benefit from the compression. Your muscles swell during exercise, and your size should allow for a certain margin to prevent a tourniquet effect and thus restricting blood flow.
Size charts Compressport
Most size charts are unisex, except for tops, where sizes differ.
Women: Shirts, long sleeves and jackets

| 1 | 2 | 3 | |
|---|---|---|---|
| XS | 77-82cm | 62-67cm | 84-89cm |
| S | 83-88cm | 68-73cm | 90-95cm |
| M | 89-94cm | 74-79cm | 96-101cm |
| L | 95-100cm | 80-85cm | 102-107cm |
| XL | 101-106cm | 86-91cm | 108-113cm |
Men: Shirts, long sleeves and jackets

| 1 | 2 | 3 | |
|---|---|---|---|
| XS | 84 - 89cm | 70 - 7cm5 | 83 - 88cm |
| S | 90 - 95cm | 76 - 81cm | 89-94cm |
| M | 96 - 101cm | 82 - 87cm | 95-100cm |
| L | 102 - 107cm | 88 - 93cm | 101 - 106cm |
| XL | 108 - 113cm | 94 - 99cm | 107 - 112cm |
Shorts or Quads with T-sizing

| Upper leg | |
|---|---|
| T0 - XS | 44-49cm |
| T1 - S | 49-54cm |
| T2 - M | 54-59cm |
| T3 - L | 59-64cm |
| T4 - XL | 64-69cm |
Tights and pants

| 1. Waist | 2.Hips | |
|---|---|---|
| XS | 70 - 75cm | 83 - 88cm |
| S | 76 - 81cm | 89 - 94cm |
| M | 82 - 87cm | 95 - 100cm |
| L | 88 - 93cm | 101 - 106cm |
| XL | 94 - 99cm | 107 - 112cm |
Socks in 4 sizes

| Shoe size | |
|---|---|
| T1 | 35-38 |
| T2 | 39-41 |
| T3 | 42-44 |
| T4 | 45-48 |
Stockings in four sizes

| Tube size | |
|---|---|
| T1 | 30-34 CM |
| T2 | 34-38 CM |
| T3 | 38-42 CM |
| T4 | 42-46 CM |
Socks/stockings with multiple sizes

| Calf circumference | Shoe size | |
|---|---|---|
| 1S | 22-30 | 35-38 |
| 1M | 30-38 | 35-38 |
| 2M | 30-38 | 39-41 |
| 3M | 30-38 | 42-44 |
| 4M | 30-38 | 45-47 |
| 2L | 38-46 | 39-41 |
| 3L | 38-46 | 42-44 |
| 4L | 38-46 | 45-48 |
Arm Sleeves

| Circumference | |
|---|---|
| T1 | 22-25 cm |
| T2 | 25-28 cm |
| T3 | 28-31 cm |
| T4 | >31 cm |
Compressport Free Belts Size Chart

| Circumference | |
|---|---|
| XS/S | 78-94 cm |
| M/L | 94-110 cm |
| XL/XXL | >110 cm |
Please note: For sizing, use your shoe size, not your calf size.
Ultra-light compression full socks with graduated ventilation for exceptional muscle support and oxygen delivery in the hottest conditions.
The new generation of Full Socks Oxygen takes muscle support and ventilation to the next level, giving you a formidable ally for fast-paced races in the hottest conditions. These featherlight compression socks for running and endurance sports offer an unparalleled second-skin feel and exceptional comfort thanks to ultra-soft mesh fabric. As the lightest sock in the Compressport series, ventilation and breathability are paramount: interwoven zigzag ventilation bands start at the base of the calf and gradually increase in height around the muscle, allowing it to expand and breathe naturally during intense efforts. This graduated ventilation provides top-level thermoregulation to guide you through your biggest races. The incredibly thin fibers retain all the compression properties and benefits, providing maximum support and protection for the foot and calf while limiting shock and vibrations through muscles and tendons. Oxygen flow to the muscles is improved by up to 10%, delaying the onset of fatigue and increasing performance. Carefully placed 3D dots around the foot provide extra grip in the shoe and extend into the Achilles tendon to stimulate blood flow and absorb shock. The structure and volume of the dots have been reduced compared to other sock styles for a lower overall weight, while maintaining their efficiency. Last but not least, our new, durable knit logos ensure the Compressport signature endures under the toughest conditions—just like you. Whether you're a marathon runner or a trail runner, don't compromise on comfort and performance with these ultralight, refreshing compression socks!
KEY BENEFITS
- Maximum thermoregulation thanks to the graduated ventilation woven directly into the fabric
- Ultimate oxygen supply to the muscles thanks to graduated zigzag ventilation bands, allowing the calf muscles to breathe and expand during exercise
- Controlled compression for improved muscle oxygenation, allowing you to maintain speed and intensity for longer during exercise













