Blog OLC

Rash guard buying guide

Everything to check before choosing a rash guard for swimming, surfing or training in the water.

Buying a rash guard begins with deciding whether it is for surfing, lap swimming, snorkelling or a relaxed beach day. Each activity changes the importance of fit, coverage and fabric resistance.

Step one: choose the fit

For surfing and swimming, a close cut limits loose fabric and movement in water. A relaxed fit may be comfortable for walking along the shore. Either way, you should breathe deeply, rotate shoulders and lift both arms without neck pressure.

Step two: set the coverage

Long sleeves cover more area; short sleeves ventilate better out of water. Check torso length and, for surfing, whether there is a connector loop for boardshorts. A higher collar increases coverage, but a rough edge can create irritation.

Step three: interpret the fabric

Common blends combine a durable fibre with elastane. Compare fabric weight, multidirectional stretch, recovery and wet opacity. Pool users should seek declared chlorine tolerance; frequent sea users should consider abrasion and colourfastness.

Step four: inspect construction

• Flat seams or joins placed away from underarms. • Hems that remain flat instead of rolling. • Panels shaped around shoulder movement. • A specific UPF when sun protection is a goal. • Clear washing and drying instructions.

Step five: confirm sizing

Use the brand's own chart. Measure chest, waist and torso with a flexible tape, then compare the published range. If you sit between sizes, ask how fit changes; sizing up does not necessarily correct a short torso or poor sleeve proportion.

After purchase

Rinse the top after chlorine, salt or sand. Do not leave it wet inside a bag and avoid rough surfaces. The garment may reduce friction and add coverage, but it cannot replace water skills, supervision, suitable flotation or sunscreen on exposed areas.