overshoes/toe caps

Hi all,

           This is my first winter as a road cyclist and i need advice on best way to keep my toes dry and warm. I do have a pair of Endura Dextor overshoes which have been ok for light rain and in tempertures down to 4 degrees however my toes do get cold after about an hour of riding. Should or can i wear toe covers over the overshoe or is it best to look for a better overshoe and if so what are your recommendations. Nothing to expensive though please! Thank you in advance.

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