Jack & Jones Oliver 5 Pack Trunks - Grey

Yes, they provide good flexibility and moisture management for light to moderate activity, though intensive athletics may require performance-specific synthetic gear.

Yes, they are machine washable, but it is highly recommended to use low heat to ensure the elastic waistband lasts longer.

The woven elastic waistband is designed for both durability and comfort, providing a secure fit without excessive pressure.

The Oliver series is typically designed as a classic trunk style; please check your specific product packaging for internal configuration details.

These follow standard adult male sizing; consult the manufacturer's size chart based on your waist measurement to ensure the most comfortable fit.

Ensure you are using the correct size; if the issue persists after a wash, verify the garment was not dried on high heat which can shrink the elastic.

Avoid washing in extremely hot water or using high-heat tumble drying, as extreme heat is the primary cause of fiber degradation in cotton-elastane blends.