SAXX Size Guide
SAXX is a men's lifestyle brand specialising in underwear, base layers, shorts, and everyday apparel engineered for comfort and performance. The brand is known for innovative construction, moisture-wicking fabrics, and attention to fit across all body types. SAXX sizes generously to ensure a comfortable, supportive fit, and recommends sizing up if your measurements fall between two sizes.
How to Measure
For the most accurate sizing, take measurements while wearing minimal clothing and have a friend assist you. Measure against a flat surface, and do not pull the tape tight.
- Chest: Measure around the widest part of your chest, generally at or just above the nipple line. Keep the tape parallel to the ground.
- Waist: Measure just above your navel, without pinching or compressing the tape. This is the key measurement for underwear and shorts.
- Hips: Measure around the widest part of your buttocks, keeping the tape level.
- Inseam (for bottoms): Stand with your feet shoulder-width apart. Measure from the inner thigh down to your ankle bone. This determines the length of shorts and pants.
- Arm length (for tops): Measure from the centre back neck, across the shoulder, and down the arm to the wrist with your elbow slightly bent.
- Shoe size: Measure your foot length from heel to toe in centimetres, or use your known shoe size in your preferred system (UK, US, or EU).
Underwear & Base Layers
| International Size | Waist (inches) | Waist (cm) |
|---|---|---|
| XS | 27–29 | 69–74 |
| S | 29–32 | 74–82 |
| M | 32–35 | 82–89 |
| L | 35–38 | 89–97 |
| XL | 38–42 | 97–107 |
| 2XL | 42–46 | 107–117 |
Underwear Silhouettes & Inseams
| Style | Inseam (inches) |
|---|---|
| Brief | 0" |
| Trunk | 3" |
| Boxer Brief | 5" |
| Long Leg | 7–9" |
| Tight / Base Layer | 29" |
Shorts
| International Size | Waist (inches) | Waist (cm) |
|---|---|---|
| XS | 28–29 | 71–74 |
| S | 30–32 | 76–82 |
| M | 33–35 | 84–89 |
| L | 36–38 | 91–97 |
| XL | 39–42 | 99–107 |
| 2XL | 43–46 | 109–117 |
Shorts Inseams by Collection
| Collection / Style | Inseam (inches) |
|---|---|
| Hightail | 5" |
| Sport 2 Life | 7" |
| Gainmaker | 7" / 9" |
| Go To Town | 8" |
| Multi-Sport | 7" |
Trousers & Pants
| International Size | Waist (inches) | Waist (cm) |
|---|---|---|
| XS | 28–29 | 71–74 |
| S | 30–32 | 76–82 |
| M | 33–35 | 84–89 |
| L | 36–38 | 91–97 |
| XL | 39–42 | 99–107 |
| 2XL | 43–46 | 109–117 |
Trousers Inseams by Collection
| Collection / Style | Inseam (inches) |
|---|---|
| 3Six 5 | 28.5" |
| Snooze | 8" / 29.5" |
| 22nd Century | 29.5" |
| DropTemp | 30" |
| Go To Town | 29" |
| PeakDaze | 29" |
Tops & T-Shirts
| International Size | Chest (inches) | Chest (cm) |
|---|---|---|
| XS | 33–35 | 84–89 |
| S | 35–38 | 89–97 |
| M | 38–41 | 97–104 |
| L | 41–44 | 104–112 |
| XL | 44–48 | 112–122 |
| 2XL | 48–52 | 122–133 |
Socks
| Size | US Men's Shoe | UK Shoe | EU Shoe |
|---|---|---|---|
| M | 6–8.5 | 5.5–7.5 | 38–42 |
| L | 9–12 | 8.5–11.5 | 43–46 |
Product-Specific Guidance
Underwear & Boxer Briefs
SAXX underwear is engineered with a proprietary two-in-one pouch design for enhanced support and comfort. Fit is snug but not restrictive. Use your waist measurement as your primary sizing guide. If you are between sizes, SAXX recommends sizing up for optimal comfort, especially in the boxer brief and long-leg styles. Pay attention to inseam length: the Trunk (3") suits men who prefer a shorter cut, whilst the Boxer Brief (5") offers traditional thigh coverage. Long-Leg styles (7–9") and Tights (29") are ideal for base layering and athletic use.
Shorts
SAXX shorts range from minimal Hightail (5" inseam) options to roomier multi-sport silhouettes. Choose your waist size first, then select an inseam based on your personal preference and intended use. Sport styles feature reinforced construction and moisture-management fabrics. Casual Go To Town shorts are cut slightly roomier through the thigh and are well-suited to everyday wear. Always check the inseam chart for your chosen collection, as lengths vary.
Trousers & Pants
SAXX trousers and pants blend lifestyle comfort with professional styling. Most collections feature a standard 29–30" inseam for average heights (5’8"–6’0"). Taller or shorter men should verify the specific inseam length before ordering. Trousers run true to waist size; measure just above the navel for the most accurate fit. Modern SAXX pants often incorporate stretch fabrics and temperature-regulating technology, so a snug fit in-store may be intentional.
Tops & T-Shirts
SAXX tops are cut to a modern, athletic fit. Use your chest measurement to select your size. If your chest falls between sizes, size up for a more relaxed wear. Long-sleeve options and henleys are designed to layer with underwear and base layers. Check the specific product description for fabric and fit details, as some collections (e.g. merino wool base layers) may have different care instructions and may not be machine-dried.
Socks
SAXX socks are offered in two unisex sizes: Medium (US 6–8.5 / EU 38–42) and Large (US 9–12 / EU 43–46). Choose based on your standard shoe size. Unlike clothing, sock sizing is straightforward; there is no need to size up.
Sizing Tips
- Waist is King: For underwear, shorts, and trousers, your waist measurement is the most critical dimension. SAXX sizing charts list ranges, and it is common to fall comfortably within multiple sizes; err on the side of the larger size if in doubt.
- Inseam Variation: SAXX offers different inseam lengths even within the same size label. Always cross-reference the style name with the inseam chart before ordering shorts or trousers, as length varies significantly between collections.
- Size Up If Between: SAXX's official guidance is to choose the larger size when your measurements fall between two options. This ensures comfort and prevents excessive compression, especially in underwear.
- Merino Wool Care: Some SAXX base-layer products (e.g. Blacksheep Style merino wool) should not be tumble-dried. Always check the care label; merino pieces may benefit from air-drying or dry-cleaning to preserve longevity.
- Measure in the Evening: Feet and legs swell slightly throughout the day. Take measurements later in the day or evening for the most realistic fit, particularly for socks and fitted bottoms.
- Generous Fit Philosophy: SAXX prioritises comfort and freedom of movement over a tight silhouette. Even though the brand is known for support, the overall fit is generous compared to ultra-slim competitors. If you prefer a tighter aesthetic, you may size down by half a size.
- Layer-Friendly Design: SAXX underwear and base layers are engineered to work seamlessly under other clothing. A snug fit on the body is intentional and ensures the garment stays in place during movement.
- Consistent International Sizing: SAXX uses universal international size labels (XS, S, M, L, XL, 2XL) across all markets. Waist and chest measurements are provided in both inches and centimetres for convenience.
General Fit Notes
All SAXX measurements are taken on the body, not on the finished garment. Slight shrinkage may occur with the first wash in some fabrics, particularly cotton-blended styles. Machine wash in warm water and tumble dry on low heat with delicate cycle. Do not dry clean unless specified, and avoid bleach. When in doubt about size or fit, contact the retailer's customer service team—most SAXX stockists offer detailed fit advice and have generous return policies (typically 60–100 days).