Billabong Core Loose LS Rashguard

A Billabong Sun Shirt Made for All-Day Water Time

Anyone searching for a reliable billabong sun shirt or swim shirt for women is looking for the same thing: real coverage that does not feel like a wetsuit. The Core Loose Long Sleeve rashguard delivers exactly that, with a mock neck, long sleeves, and a loose cut designed for comfort in and out of the water.

Fabric and Protection

This rashguard is built from a recycled polyester elastane blend, specifically 87% recycled polyester and 13% elastane, giving it stretch alongside a lower-impact fabric footprint. It carries UPF 50+ sun protection, Billabong's technology rating for blocking harmful UV rays during long days outside. The mock neck adds coverage at the collar, and surf-inspired graphics appear on the left chest with a matching graphic centered on the back.

• Recycled polyester elastane blend fabric, 87% recycled polyester, 13% elastane
• UPF 50+ sun protection
• Core loose fit with mock neck and long sleeves
• Graphic on left chest, graphic centered on back

Who Wears This Rashguard

This is a women's long sleeve rashguard built for the South Florida routine of surfing, paddling, boating, and beach days where sun exposure adds up fast. The core loose fit gives freedom of movement for paddling out or working around a boat deck, while the long sleeves and UPF 50+ rating keep shoulders and arms covered through hours in the sun, something a swimsuit alone cannot do.

Wear and Care

Rinse this rashguard in fresh water after ocean or pool sessions to clear salt and chlorine from the recycled poly elastane fabric, then wash in cold water and air dry to preserve the UPF rating and the stretch in the elastane blend. Avoid fabric softener, which can coat synthetic fibers and reduce their sun-blocking performance over time.

About Billabong

Billabong came onto the scene in 1973, born from a love of all things surf, and has grown into one of the leading surf brands in the world. Decades later, with a fresh take on beach culture, Billabong continues building technical pieces like this rashguard for people who spend real time in the water.

Why Buy It at Island Water Sports

Island Water Sports has served South Florida's surf and boating community since 1978, and sun protection gear is a category we know firsthand from our own days on the water. Pick up this Billabong rashguard for a long sleeve sun shirt that holds up to salt water, sun, and repeated wear.

Free Shipping, No Minimum for IWS Beach Club Members.

Returns are eligible within 30 days of receiving your order. Return shipping labels are FREE for IWS Beach Club Members. See more