3-in-1 parka; yay or nay?

[rrrrrreatt]

I could really do with some advice about 3-in-1 jackets with detachable linings. They seem like a great idea but can you actually use one for multiple seasons?

For context, I live in Manchester but grew up on the south coast and struggle with the weather, even after a decade. I currently have a waterproof coat for each season; a v light seasalt one, a mid warmth waxed north face parka and a giant seasalt coat that was marketed as a duvet in a coat for the depths of winter.

They’re all v tired now, especially the parka, so I’m looking to replace at least the mid warmth one - could a 3-in-1 replace all of them? If so, has anyone got any recommendations? I’m a size 16-18 with a big bust so would ideally like one with a waist that could be drawn in and have a budget of about £200-£250.

I’ve been looking at this seasalt one but was worried my arms might be cold: https://www.seasaltcornwall.com/holdfast-waterproof-3-in-1-parka-coat

Please help!

They're awful. The liner bit of the sleeve separates from the main sleeve every time you take it off and pull your arm out and it's a pain to put it back in.

Much better to have a winter coat and a summer coat. Wear a fleece underneath a coat if you need to.