Label
The name(s) presented could be conjectural.
Labels are found in names of gear that share similar design or are found using a brand's mascot name in Splatoon and Splatoon 2.
Deca
Deca is a label only found on gear in Splatoon 2
This label is found in two pieces of 
Zink clothing and in one piece of 
Forge headgear. The 
Navy Deca Logo Tee and the 
White Deca Logo Tee have both a logo on their front and back that resembles that of Zink, while Forge's 
Deca Tackle Visor Helmet has Inkling text and characters resembling Inkling numbers on its front and back as well as a logo on the sides which doesn't seem to resemble anything.
The name Deca comes from the Greek word "deka" meaning 'ten' and is usually used as a prefix in words. The label derives from the Japanese label "デカ" / "deka", also meaning 'deca'. Ten might be a reference to squids only having ten tentacles.
- Gallery of Deca-labeled gear
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Dakro
Dakro is a label only found on gear in Splatoon 2
This label is found in two pieces of Zink clothing. The 
Dakro Golden Tee and the 
Dakro Nana Tee have a rectangular design on front with Zink's name in Inkling. This design doesn't seem to resemble anything.
The name Dakro comes from the Japanese portmanteau "デカロ" / "dekaro" which is a combination of the words "デカ" / "deka", the Greek word "deka" meaning 'ten', and "ロゴ" / "rogo", meaning 'logo'.
- Gallery of Dakro-labeled gear
Dakronik
Dakronik is a label only found on gear in Splatoon 2
This label is found in five pieces of Zink footwear. The 
Black Dakroniks, 
Chocolate Dakroniks and 
Mint Dakroniks being variants of each other have all oversized soles and laces. They have an arrow around the back of the heel and a tag with Zink's name on it in Inkling. On the tongue of the shoes the same rectangular design can be found as the ones found on the Dakro Golden Tee and the Dakro Nana Tee. This could mean that Dakroniks are the shoes of the Dakro line which is supported by the fact that the first part of their names are the same.
The 
Blue Laceless Dakroniks and the 
White Laceless Dakroniks being variants of each other have regular-sized sneakers without laces. Similar to the previous shoes, they have an arrow around the back of the heel and a tag with Zink's name on it in Inkling and have the same Dakro logo.
The name Dakronik comes from the Japanese portmanteau "デカロニック" / "dekaronikku" which is a combination of the word "デカ" / "deka", the Greek word "deka" meaning 'ten', and the Japanese name for Zink, "アイロニック" / "Aironikku", meaning 'ironic'. Because the label refers to a pair of shoes, a 'S' is added to the name to make it plural.
- Gallery of Dakronik-labeled gear
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Seahorse
Seahorse is a label found on gear in Splatoon and Splatoon 2
This label is found in three pieces of Zink footwear. The 
Black Seahorses, the 
White Seahorses and the 
Yellow Seahorses being variants of each other have an arrow on the side resembling the one found on Zink's logo as well as Zink's logo on the tongue of the shoes.
The name Seahorse comes from the Japanese label "シーホース" / "shīhōsu" which translates to 'seahorse'. Because the label refers to a pair of shoes, a 'S' is added to the name to make it plural.
- Gallery of Seahorse-labeled gear
Hi-Horse
Hi-Horse is a label found on gear in Splatoon and Splatoon 2
This label is found in four pieces of Zink footwear. The 
Gold Hi-Horses, the 
Purple Hi-Horses, the 
Red Hi-Horses and the 
Zombie Hi-Horses being variants of each other have an arrow on the side resembling the one found on Zink's logo as well as Zink's logo on the tongue of the shoes.
Similar to the Seahorse label, the name Hi-Horse comes from the Japanese label "シーホースHi" / "shīhōsu hai" which translates to 'seahorse hi'. 'Hi' refers to the shoe being a High-top. Because the label refers to a pair of shoes, a 'S' is added to the name to make it plural. Seeing the similarities in the name of the labels, both in English and Japanese, the Hi-Horses could be the High-top variants of the Seahorse line.
- Gallery of Hi-Horse-labeled gear
King
King is a label only found on gear in Splatoon 2
This label is found in two pieces of 
Enperry headgear and four pieces of Enperry clothing. The 
King Facemask has the latter half of the text found in Enperry's logo on its front. Similarly, the front of 
King Flip Mesh has this as well but featuring a crown on top of the text. Enperry's full name in Inkling can be found on the underside of the bill.
The 
King Jersey has Enperry's logo on the front and numbering in Inkling can be found on the left sleeve and back. Like the King Facemask, half of Emperry's name can be found on the right sleeve. Similarly, the front of 
Navy King Tank and 
White King Tank have Enperry's logo on the front as well but also half Enperry's name featuring a crown like the King Flip Mesh. The 
Slash King Tank has a small Emperry logo with the former half of its name minus the first character while having Emperry's latter half of its name on the front.
The name King comes from the Japanese label "キング" / "Kingu" which translates to 'king'. The name is fitting seeing how a crown can be found on many of King's gear and considering the label's name and that the latter half of Enperry's name is only shown with this crown, it could mean that the text in Inkling translates to 'King'.
- Gallery of King-labeled gear
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