Typical Costwolds behaviour IME. They slip these price hikes in all around the shop amongst the rrps.
eg. just by the door in my local branch they have a basket of Regatta 'Packaway' wp jackets - £30 and troos £20.
I use the same for work and summer walks. But I get mine from the local 'countryside store' for £13 and £8 respectively - less than half the Costwolds price!