[UK] Told im not allowed a fleece

So I I’m currently a team member and was hired for middle of house but have since learned how to back of house and we recently got a delivery of new uniforms and when I asked for a fleece because the shop is quite cold during the winter I got told I wasn’t allowed one because I do shifts in kitchen but yet another kitchen staff got one due to the fact they also do middle shifts which I don’t understand as I also do middle shifts. Is this just my management team being d**ks?