New “That Time I Got Reincarnated as a Slime” Apparel & Goods Featuring Adorable Rimuru-sama to Debut! Pre-sales at Wonder Festival 2026 [Summer]!

Get Ready, “TenSura” Fans! New Rimuru-sama Goods Arriving Soon!

Exciting news for all “That Time I Got Reincarnated as a Slime” enthusiasts! COSPA, known for its official character costumes, apparel, and merchandise, has announced a fantastic new collection featuring everyone’s favorite slime, Rimuru-sama. This lineup includes stylish and functional apparel perfect for any season, along with practical bags to carry your essentials.

Exclusive Pre-sale at Wonder Festival 2026 [Summer]!

Mark your calendars, because a special pre-sale event is happening at Wonder Festival 2026 [Summer]! This is your golden opportunity to get your hands on these new items before anyone else.

When: Sunday, July 26, 2026
Where: COSPA booth at Makuhari Messe

Please note that pre-sale quantities are limited, and some items/sizes may not be available for pre-sale. Specifically, the S sizes for the Rimuru-sama College Plating T-shirt and Wisdom King (Raphael) Icon Dry T-shirt will not be available during the pre-sale.

If you attend Wonder Festival, you’ll be able to immediately enjoy these comfortable and stylish items, perfect for the summer season!

For more details on COSPA’s sales at Wonder Festival 2026 [Summer], check out the official page:
https://www.cospa.com/cospa/special/wonfes/

Discover the Adorable Rimuru-sama Collection!

Let’s dive into the fantastic items waiting for you!

Rimuru-sama College Plating T-shirt & Wisdom King (Raphael) Icon Dry T-shirt

These T-shirts are designed for ultimate comfort and style, perfect for showing off your love for Rimuru-sama while staying cool.

Everyone’s Rimuru-sama Lightweight Dry Hoodie

Release Date: Scheduled for early October 2026 (General Sale)
Price: 6,380 yen (tax included)
Sizes: M/L/XL/XXL
Color: BLACK

This lightweight hoodie is perfect for casual outings. It boasts excellent moisture absorption, quick-drying properties, and UV protection, ensuring you stay comfortable even on warmer days. Its quick-drying and wrinkle-resistant features make it ideal for daily wear and sports activities.

Rimuru-sama College Plating T-shirt

Release Date: Scheduled for early October 2026 (General Sale)
Price: 4,180 yen (tax included)
Sizes: S/M/L/XL (S size not available for pre-sale)
Colors: NAVY/WHITE

This high-performance T-shirt combines the natural look of cotton with advanced functionality. The outer surface is 100% cotton for a soft feel, while the inner mesh structure ensures high breathability and quick-drying properties. It also features a contact cooling function, providing a refreshing -4.8℃ sensation, making it perfect for everyday wear, outdoor activities, or live events.

Wisdom King (Raphael) Icon Dry T-shirt

Release Date: Scheduled for early October 2026 (General Sale)
Price: 3,520 yen (tax included)
Sizes: S/M/L/XL (S size not available for pre-sale)
Color: BLACK

Achieve ultimate comfort with this high-performance T-shirt, featuring excellent moisture absorption, quick-drying capabilities, and a UPF20 rating for approximately 95% UV cut. It’s designed to keep you feeling fresh and comfortable, even on hot days, and dries quickly after washing.

Practical Tote Bags for Your “TenSura” Adventures!

Carry your belongings with pride with these Rimuru-sama themed tote bags.

Rimuru-sama College Shoulder Tote

Release Date: Scheduled for early October 2026 (General Sale)
Price: 2,200 yen (tax included)
Size: Approximately 40×34×13cm
Material: 100% Cotton
Color: BLACK

This durable shoulder tote, made from thick canvas fabric, features a snap button closure and a convenient inner pocket for small items. Its long strap is perfect for斜めがけ (cross-body wear), making it ideal as a sub-bag for events or shopping.

Rimuru-sama College Large Tote

Release Date: Scheduled for early October 2026 (General Sale)
Price: 1,980 yen (tax included)
Size: Approximately 40×48×15cm
Material: 100% Cotton
Color: BLACK

This large-capacity tote bag, made with sturdy fabric, is perfect for daily commutes, school, or any outing. Its spacious design makes it highly versatile for events and shopping.

General Sale & Reservations

If you can’t make it to Wonder Festival, don’t worry! General sales are scheduled for early October 2026. You can already pre-order these fantastic items at the COSPA online shop and other retailers.

Check out the full lineup of “That Time I Got Reincarnated as a Slime” products from COSPA here:
https://www.cospa.com/cospa/itemlist/id/01692/mode/series

Don’t miss out on these wonderful new items that let you carry a piece of the “TenSura” world with you every day! Get ready to level up your fan gear and celebrate Rimuru-sama in style!