ASSOS of Switzerland Size Guide
ASSOS of Switzerland is a premium cycling apparel and footwear brand renowned for precision engineering and performance-driven design. Their sizing philosophy emphasises a fitted, performance-oriented aesthetic tailored to the demands of serious cyclists. ASSOS garments are designed to work synergistically with cycling biomechanics, offering streamlined silhouettes that reduce wind resistance while maintaining comfort and freedom of movement. This guide covers clothing, footwear, and accessories across men's, women's, and unisex ranges. Due to the technical nature of cycling wear, accurate measurement is essential to ensure optimal fit and performance.
How to Measure
- Body Height — Stand barefoot against a wall and measure from the top of your head to the ground. This ensures correct length proportions across the range.
- Chest — Measure horizontally around the widest part of your chest, typically at or just above the nipple line. Keep the tape measure snug but not tight, and measure while wearing minimal clothing.
- Waist — Measure just above your navel without pinching the tape. This is the reference point for shorts, tights, and base layer fit.
- Hips — Measure around the widest part of your buttocks and hips while standing with feet together.
- Arm Length — Extend one arm with the elbow slightly bent and measure from the shoulder joint to the wrist. This guides sleeve length on jerseys and long-sleeve pieces.
- Inside Leg Length — Measure from the top of the inner thigh to just below the ankle bone. This is critical for accurate inseam and bib tight fit.
- Neck — Measure around the base of the neck (just below the Adam's apple for men) to determine collar sizing on base layers and jerseys.
- Hand Circumference — Wrap the tape measure around the widest part of your hand (across the knuckles, excluding the thumb) to size gloves correctly.
- Head Circumference — Measure around the fullest part of your head, just above the eyebrows and ears. This ensures proper fit for headgear and caps.
Tip: Enlist a friend to help with measurements for greater accuracy. If your measurements fall between two sizes, ASSOS recommends selecting the larger size to avoid a restrictive fit.
Size Charts
Men's Outerwear & Jerseys
| International Size | Manufacturer Size | Height (cm) | Chest (cm) | Chest (inches) | Waist (cm) | Waist (inches) |
|---|---|---|---|---|---|---|
| XS | XS | 155–170 | 88–91 | 34–36 | 70–74 | 27.5–29 |
| S | S | 165–178 | 92–95 | 36–37 | 75–80 | 29.5–31.5 |
| M | M | 173–188 | 96–100 | 37.5–39 | 81–86 | 32–34 |
| L | L | 178–190 | 101–106 | 39.5–41.5 | 87–92 | 34–36 |
| XL | XLG | 181–195 | 107–113 | 42–44.5 | 93–99 | 36.5–39 |
| XXL | XLG | 185+ | 114–121 | 44.5–47.5 | 100–106 | 39–41.5 |
| 3XL | TIR | 185+ | 122–129 | 48–51 | 107+ | 42+ |
Men's Bib Shorts & Tights
| International Size | Manufacturer Size | Waist (cm) | Waist (inches) | Hips (cm) | Hips (inches) |
|---|---|---|---|---|---|
| XS | XS | 70–74 | 27.5–29 | 89–95 | 35–37.5 |
| S | S | 75–80 | 29.5–31.5 | 94–100 | 37–39.5 |
| M | M | 81–86 | 32–34 | 99–106 | 39–41.5 |
| L | L | 87–92 | 34–36 | 105–110 | 41.5–43.5 |
| XL | XLG | 93–99 | 36.5–39 | 109–116 | 43–45.5 |
| XXL | XLG | 100–106 | 39–41.5 | 115–121 | 45–47.5 |
| 3XL | TIR | 107+ | 42+ | 120+ | 47+ |
Women's Outerwear & Jerseys
| International Size | Manufacturer Size | Height (cm) | Chest (cm) | Chest (inches) |
|---|---|---|---|---|
| XS | XS | 145–160 | 77–82 | 30.5–32 |
| S | S | 155–168 | 83–88 | 32.5–34.5 |
| M | M | 163–178 | 89–95 | 35–37.5 |
| L | L | 168–180 | 96–103 | 37.5–40.5 |
| XL | XL | 171–185 | 104–111 | 41–43.5 |
| XXL | XLG | 175+ | 112+ | 44+ |
Women's Bib Shorts & Tights
| International Size | Manufacturer Size | Waist (cm) | Waist (inches) | Hips (cm) | Hips (inches) |
|---|---|---|---|---|---|
| XS | XS | 70–74 | 27.5–29 | 88 | 34.5 |
| S | S | 75–80 | 29.5–31.5 | 94 | 37 |
| M | M | 81–86 | 32–34 | 100 | 39.5 |
| L | L | 87–92 | 34–36 | 106 | 41.5 |
| XL | XL | 93–99 | 36.5–39 | 112 | 44 |
| XXL | XLG | 100–106 | 39–41.5 | 118 | 46.5 |
Unisex Gloves
| International Size | Manufacturer Size | Hand Circumference (cm) | Hand Circumference (inches) |
|---|---|---|---|
| XS | XS | 17.5–19 | 6.9–7.5 |
| S | S | 18.5–20 | 7.3–7.9 |
| M | M | 20–22 | 7.9–8.7 |
| L | L | 22–23.5 | 8.7–9.3 |
| XL | XL | 23.5–25.5 | 9.3–10 |
| XXL | XLG | 25+ | 9.8+ |
Unisex Socks
| International Size | Manufacturer Size | UK Shoe Size | EU Shoe Size | Foot Length (cm) |
|---|---|---|---|---|
| 0 | 0 | 3–5 | 36–39 | 22.5–24.5 |
| I | I | 6–9 | 40–43 | 25–27 |
| II | II | 10–12 | 44–47 | 27.5–29.5 |
Unisex Overshoes
| International Size | Manufacturer Size | EU Shoe Size |
|---|---|---|
| 0 | 0 | 36–39 |
| I | I | 40–43 |
| II | II | 44–47 |
Unisex Headgear
| International Size | Manufacturer Size | Head Circumference (cm) | Head Circumference (inches) |
|---|---|---|---|
| 0 | 0 | 48–53 | 18.9–20.9 |
| I | I | 51–58 | 20–22.8 |
| II | II | 59–63 | 23.2–24.8 |
Product-Specific Guidance
Cycling Jerseys
ASSOS cycling jerseys are engineered with a race-fit silhouette that prioritises aerodynamics and close contact with the body. Measure your chest accurately and note your height, as length proportions vary significantly across the size range. If you are between sizes, opt for the larger size to avoid excessive compression across the shoulders and torso, which may restrict breathing and movement.
Bib Shorts & Bib Tights
Bib shorts and tights are the foundation of every cycling kit. ASSOS designs these with an anatomically optimised chamois and precise waist-to-hip ratios. Waist fit is critical: measure just above your navel without tightening, and if you are between sizes, choose the larger option. An overly tight waist will cause discomfort during long rides and compromise blood flow. The bib straps should sit comfortably on your shoulders without bunching or slipping.
Gloves
Glove fit directly affects grip and control on the handlebar. Measure your hand circumference at the widest point across the knuckles (excluding the thumb). ASSOS gloves come in six sizes; a snug fit is desirable to maintain feel and dexterity, but there should be no pinching across the palm or fingers.
Overshoes & Rain Booties
Overshoes protect your cycling shoes and feet in wet conditions. ASSOS overshoes are sized to EU shoe sizes and come in three broad categories (0, I, II). Check your road cycling shoe or mountain bike shoe size in EU measurements and select accordingly. RS Rain Booties offer a slightly different size progression to accommodate thicker socks and multiple shoe types.
Socks & Headgear
Cycling socks must fit precisely to prevent blistering and bunching inside your shoes. ASSOS socks are graded by shoe size; refer to your EU shoe size rather than your clothing size. Headgear (caps, beanies, headbands) is sized by head circumference. Measure around your head just above the eyebrows and ears for an accurate fit that remains stable during riding.
Sizing Tips
- Measure on bare skin or in thin base layers. Thick underwear or t-shirts will skew your measurements and lead to an incorrect size choice. For the most accurate fit, measure in minimal clothing.
- Always measure when upright and relaxed. Hunching, stretching, or holding your breath will produce measurements that do not reflect your true dimensions and lead to fit issues when cycling.
- For bib shorts and tights, prioritise waist fit over hips. If measurements fall between sizes, select the larger waist size to avoid restriction at the elasticated band, which will dig into your lower abdomen during rides.
- Height matters as much as width. ASSOS provides separate height ranges for each size. If you are very tall or very short within a chest measurement range, you may need to size up or down to achieve correct sleeve and garment length proportions.
- When in doubt, choose the larger size. ASSOS clothing is engineered with a performance fit; an undersized garment will restrict movement, while an oversized one offers room for base layers and breathing without compromising aerodynamics.
- Check product reviews for fit feedback. Individual items (jerseys vs. tights, different seasons) may fit differently due to fabric and construction. Read customer reviews to learn whether a specific piece runs large, small, or true to size.
- Cycling shoes are often one size smaller than street shoes. If you are new to cycling, remember that your EU road cycling shoe size may differ from your everyday footwear. Verify your shoe size before ordering socks or overshoes.
- Allow for growth and layering. If you plan to wear thick thermal base layers underneath your jersey or shorts during winter riding, consider sizing up by one category to maintain comfort and avoid compression.