Speedo Global Fit Adult Male Swim Extended Sizes XXS-5XL Size Guide

This size guide covers Speedo Global Fit adult men's swimming shorts in extended alpha sizes XXS–5XL. All measurements are body measurements taken from your own body, not garment measurements. Always use both your hip and waist measurements as the primary guide — if they suggest different sizes, use the hip measurement to decide. These sizes apply to all countries.

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Body Measurement Points
Speedo men's swimming shorts body measurement diagram
How to Measure

Take all measurements directly against your skin using a soft tape measure. All measurements are body measurements, not garment measurements.

  • A
    Hip* Measure around the widest part of your hips, keeping the tape horizontal and parallel to the floor. This is the primary measurement for men's swimming shorts.
  • B
    Waist** Measure around your natural waistline, approximately 2.5 cm (1 inch) above your navel. Keep the tape comfortably snug but not tight.

*Hip measured around the fullest part of the seat, tape parallel to the floor. **Waist measured at the natural waistline. If hip and waist suggest different sizes, use the hip measurement to decide.

Sizing Table — Speedo Global Fit Adult Male Swim Extended Sizes (XXS–5XL) — All Countries
Measurement XXS XS S M L XL XXL 3XL 4XL 5XL
Body Measurements (cm)
Hip* 80–85 86–92 93–97 98–106 107–116 117–126 127–136 137–145 146–155 157–165
Waist** 63–68 69–74 75–79 80–88 89–98 99–108 109–118 119–127 129–137 139–147

*Hip measured around the fullest part of the seat, tape parallel to the floor. **Waist measured at the natural waistline. All measurements are body measurements, not garment measurements. If hip and waist measurements suggest different sizes, use the hip measurement to decide.

Fit Notes — Speedo Global Fit Adult Men's Extended Sizes
  • Always use your hip and waist measurements as the primary guide when selecting a Speedo extended size. If both measurements do not fall in the same size, use the hip measurement to decide.
  • If your measurements fall between two sizes, we recommend sizing up for a more comfortable fit, particularly across the extended size range.
  • Speedo men's swimming shorts are designed to fit closely and securely — the waistband should sit flat with no gaping, and the leg opening should feel snug without restricting movement.
  • Most Speedo men's styles feature an internal drawcord at the waist, which allows adjustment if your waist measurement falls at the lower end of a size range.
  • Speedo swimwear is made from chlorine-resistant fabrics that ease slightly with wear — do not size up based on initial tightness.
  • Rinse in cold fresh water immediately after every use. Do not tumble dry, iron, or dry-clean.
  • Unsure? Contact our team or call +44 1827 330600.
Frequently Asked Questions — Speedo Adult Men's Extended Sizes

Measure your hip and waist against your skin with a soft tape measure. Use both measurements to identify your size in the table above. If they fall in different size columns, use the hip measurement to decide. All measurements refer to your body, not the garment.

If your measurements fall between two sizes, size up. Most Speedo men's styles include an internal drawcord which allows the waistband to be taken in slightly, so a marginally larger size can still be adjusted for a secure fit at the waist. Speak to a member of staff at Allens if you are unsure.

Speedo's extended alpha sizes (XXS–5XL) are designed for products which fall outside the standard numeric range (26–46). The sizing is based on the same body measurement system — always use your hip and waist measurements to find the correct size, regardless of which size range you are shopping from.

Yes. The extended alpha sizes (XXS–5XL) use a single global measurement system that applies across all countries. There are no regional size equivalents for this range — simply measure your hip and waist and compare directly to the body measurement table above.

The extended size range covers Speedo's recreational and fitness swimwear. For competitive pool swimming, Speedo's Fastskin racing range is specifically designed and World Aquatics approved, though availability in extended sizes may vary. Speak to a member of staff at Allens for guidance on the right product for your level and size requirements.

Speedo swimwear is primarily designed for pool use. While the chlorine-resistant fabrics will withstand occasional use in open water or the sea, prolonged exposure to salt water can accelerate fabric wear. Rinse thoroughly in fresh water after every use, whether in a pool, the sea, or open water.

Rinse in cold fresh water immediately after every use to remove chlorine, salt, and sunscreen. Hand wash gently with a mild detergent if needed. Do not machine wash, tumble dry, iron, or dry-clean. Store flat and dry, away from direct sunlight. Avoid sitting on rough pool surrounds as this can cause premature fabric wear.