Navy Blue Shark Onesie

£39.99

  • Fabric: soft flannel with a deep pile that feels warm on contact
  • Design: navy body, white belly panel, hood with teeth and a small tail at the back
  • Fit: zip from the collar to the waist with close fitting cuffs
  • Ideal for: winter evenings, sleepovers, themed parties, quiet weekends
  • Washing: machine washable, the pile stays soft
  • 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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Navy Blue Shark Onesie

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  • Fabric: soft flannel with a deep pile that feels warm on contact
  • Design: navy body, white belly panel, hood with teeth and a small tail at the back
  • Fit: zip from the collar to the waist with close fitting cuffs
  • Ideal for: winter evenings, sleepovers, themed parties, quiet weekends
  • Washing: machine washable, the pile stays soft

Deep water navy runs through the Women’s Navy Blue Shark Onesie

Between the bright blue and the black sits this navy blue shark onesie for adults, cut from a soft flannel with a deep pile. The navy reads almost black in a dim room and clearly blue in daylight, which makes it the most wearable shade of the range for anyone who finds fancy dress a little loud.

The white belly panel keeps the silhouette readable, the hood carries its row of teeth and a red lining, and a small tail sits low on the back. A zip opens the front, so the onesie goes on over a t shirt in one movement and comes off just as fast when the room warms up.

Men’s Navy Blue Shark Onesie for long winter nights

An adult navy blue shark onesie works as much for the warmth as for the look. The pile traps heat like a duvet, the cut leaves room to curl up sideways on the sofa and the fabric stays quiet, with none of the crackle some fabrics have.

Navy also photographs better than black against a dark background, so the shark still reads on a group picture. Order it for a winter break, a pyjama party or the long stretch of evenings when leaving the house stops being appealing.

The rest of the deep end

The kids navy blue shark onesie dresses a child in the same deep navy for a matching pair. For a fully dark version, the black shark onesie removes the belly panel and the colour. Compare every shade in the shark onesies collection.

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