Dune Core Essentials Rashguard

The layer you stop noticing.

The DUNE Core Essentials Rash Guard is the base of the system — a no-gi compression layer in tonal sand, built to be worn rather than looked at. Same 280GSM construction as the rest of the line. None of the noise.

Why you’ll love it

• Locked-in compression — 280GSM four-way stretch blend holds position through inversions, shots, and scrambles. No riding up. No re-adjusting mid-roll.
• Tonal, not loud — sand-on-sand branding with no high-contrast graphics. Nothing on this top is asking for attention.
• Flatlock construction — every seam sits flat against the skin. Zero chafing across a two-hour session.
• Moisture discipline — rapid-wick fabric pulls sweat off the body and dries between rounds, keeping weight and cling minimal.
• Anti-microbial layer — engineered to resist the bacteria load of high-volume training.

Technical specifications

• Fabric: 280GSM compression blend — 85% polyester / 15% spandex
• Construction: Flatlock-stitched seams, reinforced stress points
• Graphics: Full sublimation — zero surface print
• Fit: Athletic compression. True to size. Size up for a relaxed fit.
• Ruleset: IBJJF no-gi compliant base colorway logic

Built for

The daily grind: no-gi jiu-jitsu, wrestling practice, MMA grappling rounds, and competition warm-ups. Wear it under a gi or as your primary no-gi layer.

Pairs with

The Dune Core Essentials Combat Shorts — matched kit, same standard. Buy the pair and the shorts come down 25%.

Sizing

• XS · S · M · L · XL
• Athletic compression fit — true to size

The name

Dune is what the wind leaves behind. Sand does not announce itself; it outlasts. This is the colorway for the athlete who does not need the room to know how good they are. Free from disturbance.

Composition & care

85% polyester, 15% spandex. Machine wash cold with like colors. Hang dry. No bleach, no fabric softener, no iron. Treat it like your technique — maintain it and it holds.