Marvel Rivals Swimsuit Special: Seaside Sentinel, Seaside Siren, and Coastal Kumiho Release

Three beach-themed costumes close out the Swimsuit Special run in Marvel Rivals. Captain America gets Seaside Sentinel, Loki gets Seaside Siren, and White Fox gets Coastal Kumiho, all sold through the in-game store for a limited window during the Summer Festival event.

Quick answer: The three skins are available in the in-game Store from July 2 at 9:00 AM UTC and stay purchasable until July 31 at 2:00 AM UTC. Buy them from the Featured area of the Store before that window closes.

Release time: July 2, 2026 at 9:00 AM UTC

Seaside Sentinel, Seaside Siren, and Coastal Kumiho availability window

The costumes go on sale together and disappear from the Store at the same time. There is no confirmed return date after the window ends, so treat this as a one-month buying period.

Event	Date and time (UTC)
Store availability begins	July 2, 9:00 AM
Store availability ends	July 31, 2:00 AM

Tides will rise and fall, be the unwavering force that refuses to wash away. 🌊

Coast undefeated as Captain America's Seaside Sentinel, Loki's Seaside Siren, and White Fox's Coastal Kumiho costumes!

July 2 at 9 AM – July 31 at 2 AM UTC! pic.twitter.com/CzfeigNeai
— Marvel Rivals (@MarvelRivals) June 29, 2026

What each bundle includes

All three belong to the Swimsuit Special collection, and each one carries the same set of cosmetic items. Rarity and exact Unit pricing are not finalized yet and will be confirmed when the skins go live.

Skin	Hero	Included items
Seaside Sentinel	Captain America	Costume, Spray, MVP, Emote, Nameplate
Seaside Siren	Loki	Costume, Spray, MVP, Emote, Nameplate
Coastal Kumiho	White Fox	Costume, Spray, MVP, Emote, Nameplate

A combined bundle covering all three heroes is likely, following the pattern of earlier Swimsuit Special drops. Pricing for that combined option is also not set until launch.

How to buy the summer skins in the Store

Launch Marvel Rivals and update to the current client if prompted. The Store will not show the new costumes until the July 2 window opens.

Open the Store section from the main menu and check the Featured tab, where seasonal costumes are listed.

Select the skin or combined bundle you want, confirm you have enough Units, and complete the purchase. Once bought, the costume appears in the matching hero’s loadout, which confirms the unlock worked.

Note: If you do not see the costumes after July 2, restart the game so the Store refreshes. The most common reason they fail to appear is an out-of-date client or browsing the wrong Store tab.

Where this drop fits in Season 8.5

These three costumes are the fourth and final major costume drop of Season 8.5. After the Summer Festival skins leave the Store, Season 9 begins on July 10, marking the end of this seasonal cycle.

If you want any of the Seaside Sentinel, Seaside Siren, or Coastal Kumiho costumes, the safest plan is to buy during the open window rather than waiting on a confirmed re-release, since none has been announced.