Blastoise Onesie

£44.99

  • Material: ocean blue fleece with a cream fleece belly panel
  • Design: brown shell on the back with two water cannons, hood with ears and embroidered eyes, short tail
  • Easy on: button front, loose cut, elasticated cuffs at wrists and ankles
  • Best for: conventions, tournament nights, cosplay, gaming marathons, group costumes
  • Washing: machine washable, colours stay strong
  • 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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Blastoise Onesie

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  • Material: ocean blue fleece with a cream fleece belly panel
  • Design: brown shell on the back with two water cannons, hood with ears and embroidered eyes, short tail
  • Easy on: button front, loose cut, elasticated cuffs at wrists and ankles
  • Best for: conventions, tournament nights, cosplay, gaming marathons, group costumes
  • Washing: machine washable, colours stay strong

Cannons at the ready in a Women’s Blastoise Onesie

The arena goes quiet, the trainer points, and two cannons rise over a massive shell. Hydro Pump. Every Kanto fan remembers the day a small blue turtle finally reached its final form. This Blastoise onesie for adults salutes that power in ocean blue fleece with a cream belly, a brown shell stitched across the back and two water cannons standing at the shoulders. The hood adds pointed ears and a determined stare. Rain Dance is optional, respect is automatic. From Squirtle to Wartortle to this, patience has paid off.

Men’s Blastoise Onesie for trainers who finished the journey

The adult Blastoise onesie turns a quiet night into a championship match. This kigurumi holds the heat like a shell, the button front closes quickly between two rounds, and the loose cut leaves the arms free for cards, controllers or a victory pose. Conventions, tournaments and cartoon repeats all recognise the starter everyone secretly picked. The shell covers the back like armour, the cannons point forward for every photo, and a short tail closes the look from behind. Choose yours, trainer, and bring the heaviest hitter of the water type home.

Before and after the evolution

The Squirtle onesie shows where the story began, perfect for a duo across the evolution line. Starters and legends share the Pokémon onesies collection. Characters from other worlds wait 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