Phantom Core Essentials Rashguard in black, front view with UNVEXT chest logo
Phantom Core Essentials Rashguard, side profile showing the core essentials sleeve print
Phantom Core Essentials Rashguard, rear three-quarter view with shoulder crest
Rashguard

Phantom Core Essentials Rashguard

$69.99

Pre-Order Ships month of October

Select Your Size
SizingAdult
SizeXS
Phantom Core Essentials Combat Shorts 25% offComplete the set Save $17.49 on the combat shorts

Ships month of October

Charged today. Orders ship complete on the date above — if it moves, we email you first and you can cancel for a full refund.

NOTE: Shipping will be determined at checkout.
  • Free U.S. shipping over $130
  • All sales final
  • Secure checkout
American Express Apple Pay Diners Club Discover Google Pay Mastercard PayPal Shop Pay Visa

Description

Nothing to read. Nothing to catch.

The PHANTOM Core Essentials Rash Guard is the blacked-out end of the line — a no-gi compression layer that reads as equipment, not apparel. Same 280GSM build as the rest of Core Essentials, in the colorway that disappears under a gi and behind a camera.

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.
  • Black on black — the one colorway that never clashes with a team kit, an academy dress code, or the gi you pull over it.
  • 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 Phantom 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

A phantom is the thing you feel before you see it. Black does not perform for the room — it does the work and leaves. Wear the colorway that gives your opponent nothing to read. Free from disturbance.

Fabric Care

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.

Size Chart

Adult Sizing

SIZECHESTSLEEVELENGTH
XS31.51225
S33.512.526
M361327
L3813.528
XL40.51429.5

All measurements in inches. Chest is full circumference.
The Pair

Complete the Set

Rashguard
Phantom Core Essentials Combat Shorts in black, front three-quarter view Short

Pairs with Phantom Core Essentials Combat Shorts

$69.99 + $69.99 $139.98 $122.49

Save 25% off combat shorts Applied at checkout

Size — Phantom Core Essentials Combat Shorts

You're $7.51 away from free shipping

Kit Out

Build the Loadout

Activity Tags
  • No-Gi
  • MMA
  • Wrestling
  • Grappling
  • Conditioning

Built for the disciplines that demand the most from your gear.

The Standards

Our Foundation

Durability At Unvext Group, quality isn’t a goal; it is our baseline. Every piece of gear we produce must withstand the extreme rigors of high-level grappling and striking. We prioritize industrial-grade materials and reinforced construction to ensure our gear survives the "grind" as long as the athlete does.
Timeless We believe that true style outlasts the season. Unvext Group adheres to a clean, functional aesthetic that rejects fleeting trends and visual clutter. Our designs are intentionally understated, allowing the athlete's performance to be the focal point.
Evolution While our designs are timeless, our technology is never static. We operate in a state of constant "white belt" humility, always learning and adapting to the shifting needs of the MMA and BJJ markets. We iterate based on real-world feedback from the cage and the mats.