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 |
Description
Description
🏃♂️ Support where you need it – without the hassle.
The Salomon S/LAB Ultra Calfs Designed for long distances and high intensity runs, they provide targeted muscle support for your calves, reduce fatigue, and stay comfortable – mile after mile.
Why These Calf Sleeves Work During Ultras
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🦵 Targeted compression, not too tight
Just enough support to limit muscle fatigue, without constriction. -
🚫 No chafing or irritation
Soft, smooth fabric that moves easily as you walk. -
🌬️ Comfort with every step
Designed to flow with your body and pace, even over long distances. -
✨ Reflective details
Extra visibility for early starts or late finishes. -
🇮🇹🇵🇹 Premium quality
Fabric from Italy, produced in Portugal.
Specifications
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Product type: Calf sleeves/compression tubes
-
Gender: Unisex
-
Weight: 22 g per unit
-
Features: Muscle support, soft feel, reflective details
Perfect for
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Ultra trail runs and long training runs
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Matches where fatigue makes the difference
-
Trail runners who want compression, but not a “constricting” feeling
The S/LAB Ultra Calfs They quietly do their work: you run longer, more smoothly, and with less calf fatigue. Exactly as S/LAB was intended.







