Mountain Warehouse Active Kids Convertible Trousers – Dark Grey, Kids Size 11-12 Years

£14.99 (as of 07/01/2026 00:23 PST - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

Mountain Warehouse Active Kids Convertible Trousers in dark grey, size 11-12 Years, feature zip-off knees so they can be worn as trousers or shorts. The listed fabric details include a cotton-polyester blend, UPF 50+ treatment, fast drying properties, shrink and fade resistance, plus lots of pockets.

SKU: B01AS78BCS Category:

Quick Summary

Mountain Warehouse Active Kids Convertible Trousers are kids’ trousers in dark grey, sized 11-12 Years. The convertible design uses zip-off knees, so the same pair can be worn as trousers or shorts.

The listed fabric details also mention a cotton-polyester blend, UPF 50+ sun protection treatment, fast drying properties, and shrink and fade resistance. The product page also describes lots of pockets.

Key Details

DetailVerified information and buyer relevance
BrandMountain Warehouse, which helps identify the exact product line.
Product typeKids convertible trousers with zip-off knees for trouser or shorts wear.
ColourDark grey.
SizeKids size 11-12 Years.
Sun protectionUPF 50+ treatment is stated, which may matter for buyers comparing sun-protection features.
FabricCotton-polyester blend.
Care-related claimsFast drying, shrink resistant and fade resistant are stated features.
StorageLots of pockets are mentioned for carrying small items.

What to Compare Before Buying

  • Size: The listed size is 11-12 Years, so compare it with the child’s current fit and the sizing you need.
  • Style change: The zip-off knees let the trousers convert into shorts, so check whether that format suits the intended wear.
  • Fabric feel: The cotton-polyester blend is stated to be lightweight, breathable and soft on the skin.
  • Storage: The pockets may matter if the wearer needs space for small belongings.

Before You Decide

Confirm the dark grey colour and 11-12 Years size before choosing an offer. If the convertible trouser-to-short format and the stated fabric features suit the intended use, this is the main version to compare.

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