Shiny Umbreon Onesie

£44.99

  • Fabric: black fleece with blue fleece rings
  • Look: blue ring markings on arms and legs, hood with long blue banded ears and yellow eyes, banded tail
  • Fit: button front, side pockets, elasticated cuffs at wrists and ankles
  • Perfect for: conventions, raid nights, cosplay, Halloween
  • Care: machine washable, black stays deep and blue stays bright
  • Ultra-soft fabric | Warm and comfortable
  • Pyjamas and costume | Two in one
  • Any occasion | Bedtime, parties, film nights
  • Gift-ready | One they’ll actually wear
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Size Chart

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Shiny Umbreon Onesie

Shiny Umbreon Onesie

£44.99

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  • Fabric: black fleece with blue fleece rings
  • Look: blue ring markings on arms and legs, hood with long blue banded ears and yellow eyes, banded tail
  • Fit: button front, side pockets, elasticated cuffs at wrists and ankles
  • Perfect for: conventions, raid nights, cosplay, Halloween
  • Care: machine washable, black stays deep and blue stays bright

One in thousands, the Women’s Shiny Umbreon Onesie glows blue

Hours of searching, the same patch of tall grass, and then a sparkle that makes the heart skip. Any trainer who has hunted a shiny knows the feeling. This shiny Umbreon onesie for adults celebrates the rarest coat of the moonlight Pokémon in black fleece ringed with electric blue instead of gold. Blue bands circle the long ears and the tail, blue hoops mark the arms and legs, and yellow eyes watch from the hood. No filter, no trick of the light, just the colour every collector dreams about.

Men’s Shiny Umbreon Onesie for collectors of rare moonlight

An adult shiny Umbreon onesie is the trophy that can actually be worn. The onesie costume stays warm through a late raid, the button front and side pockets keep things practical, and elasticated cuffs hold the rings exactly where they belong. At a convention, the blue glow gets a nod from every hunter in the room. Screenshots are nice, but this is the proof that travels to the sofa, the car and the cosplay contest. Add this rare encounter to your collection today, no reset required.

The regular coat and the rest

The Umbreon onesie offers the classic golden rings for a duo under the same moon. Every evolution of Eevee waits in the Pokémon onesies collection. Other fandoms gather among the adult onesies.

Frequently Asked Questions

They’re made to keep you warm on the sofa through autumn and winter, so yes, they’re cosy. The relaxed fit lets air move around, though, so you won’t get that stuffy feeling you get from tight pyjamas.
Machine wash at 30°C on a gentle cycle. Turn them inside out and pop them in a mesh laundry bag to protect the hood. Skip the tumble dryer and the iron. They air-dry quickly and fluff right back up on their own.
Yes, every onesie we sell is unisex. The roomy cut works for men and women alike, our kids’ styles fit girls and boys just the same, and our baby sizes are cut the same way for everyone. Just check the size chart to find your fit.
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Adult size chart (measurements in cm)

SIZEHEIGHTCHESTSHOULDER WIDTHSLEEVE LENGTHONESIE LENGTH (EXCLUDING HOOD)
S144 - 1531164650127 - 130
M154 - 1631204853137 - 140
L164 - 1731245056147 - 150
XL174 - 1831285259157 - 160