O'NEILL Men's Long-Sleeve Rash Guard Basic Skins — Pacific M, UPF 50+ Lightweight Stretch

Built from a stretchy 6oz polyester/spandex blend, this long-sleeve rash guard offers reliable sun defense and a snug performance fit that moves with your body. Lightweight and quick-drying, it blocks harmful UV rays while reducing chafing against boards, wetsuits, and rough surfaces. The Pacific color and minimalist branding make it easy to pair with boardshorts, wetsuits, or casual summer gear.

How does this rash guard protect my skin in and out of the water?

The fabric has a UPF 50+ rating, which significantly reduces UV exposure during prolonged sun exposure. Its continuous coverage across the torso and arms helps prevent sunburn and limits direct sunlight on sensitive areas, while the tighter fit keeps the fabric close to skin for consistent protection.

• UPF 50+ rated fabric for strong UV defense
• Long sleeves cover commonly exposed areas like arms and shoulders
• Form-fitting design keeps fabric against skin for uninterrupted protection

Will it stay comfortable during active water sports?

The Basic Skins uses a four-way stretch knit that flexes with paddling, surfing, and swimming motions so you won’t feel restricted. Flatlock seams sit low-profile to reduce irritation and the soft face of the fabric keeps it comfortable against skin for long sessions.

• 4-way stretch polyester/spandex blend for full range of motion
• Low-profile flatlock stitching to minimize chafe
• Lightweight, quick-drying construction for comfort between sessions

How does the fit perform — is it true to size?

This model is designed with a performance or second-skin silhouette that fits closer than casual tees. Expect a tighter, athletic cut intended to layer under wetsuits or wear alone for active use; check size charts if you prefer a roomier fit.

• Performance-fit tailored for active movement
• Close-to-body silhouette ideal for layering under wetsuits
• Available in standard men's sizing—size up if you prefer relaxed wear

How durable is the material for frequent use?

The 6oz polyester/spandex blend balances softness with resilient stretch, designed to withstand repeated exposure to sun, saltwater, and chlorine. Quick-dry properties and simple construction help the shirt hold shape and UV performance over many sessions when properly cared for.

• Robust knit withstands regular water and sun exposure
• Quick-drying fibers reduce mildew and wear between uses
• Simple, value-driven design built for everyday water activity

Who is this for? The O'NEILL Men's Basic Skins Long Sleeve Rashguard is aimed at surfers, paddlers, swimmers, and outdoor enthusiasts who want reliable sun protection, minimal irritation, and unrestricted movement. It's a practical choice for anyone needing a lightweight, performance-oriented top that layers easily under wetsuits or stands alone for warm-weather water sports.