A Pokémon Shirts booth will be open during the Pokémon GO Safari Zone at Sentosa event from April 18th, 2019 until April 22nd, 2019. People can pre-order shirts that are made in Japan and shipped approximately 2 months after ordering.

An exhibition booth of Pokémon Shirts - customizable shirts using combinations of 151 Pokémon patterns - is to be opened on Sentosa Island!

Pokémon Shirt is a collaborative service between Pokémon and the online custom shirt brand Original Stitch, where you can order a custom-made shirt with patterns of 151 different Pokémon!

In collaboration with Pokémon GO Safari Zone at Sentosa™, there will be an exhibition booth of Pokémon Shirts at the event! Shirts won’t be sold at the booth, but there will be samples of the 151 patterns and completed shirts.

There will also be stickers to be handed out! Supply is limited, so make sure to come and get yours!

Booth Details:

Event/Campaign Name: An exhibition booth of Pokémon Shirts
Event Information: https://pokemongolive.com/ja/post/safarizone-sentosa/
Date: April 18（Thu.） to April 21（Sun.）, 10 a.m. to 6 p.m.
April 22（Mon.）10 a.m. to 3 p.m.
Location: Siloso Beach Walk, Palawan Green, Sentosa Island, Singapore
Special tent located near the Pokémon GO check-in area
Event Contents: Shirt samples, 151 pattern samples, sticker distribution
Notes: Shirts cannot be purchased at the booth. Sticker distribution will end when the stock runs out. Website: https://pokemon.originalstitch.com/
Instagram account: @pokemon_shirts_official

Product Information:
●Type: Men, Women
●Style: Dress, Casual, Hawaiian
●Sizes: XS, S, M, L, XL, XXL
●Customizable Parts : Seven parts--Body, collar, collar back, sleeves, cuff back, front placket, pocket
●Price: USD 100 (shipping excluded)
●Fabric: 151 Pokémon patterns + several kinds of plain fabric

Basic Information:
●Sales location: Singapore, Taiwan, Hong Kong, and Japan
●Notes: It will take up to 2 months from the time of your order for the finished product to arrive.
Contact information: Original Stitch support site

Source: https://sg.portal-pokemon.com/topics/event/190415190000_exhibition_booth_151_pokemon.html