Full details of the Under U January sale appear below with start and end dates where available. The information is not just restricted to their 'Jan sale' however - we display info on their Boxing Day 2025 sale and 2026 New Year and Winter clearances. This is usually the biggest online clearance at Under U and represents the best opportunity to find the biggest deals & bargains in their online store.

So, you grabbed lots of Under U bargains for your friends & family's Christmas presents while at the same time noting down a few things you thought would make fantastic Boxing Day deals for yourself. So all you need now is information on the 2025 boxing day sale at Under U start time and what you can expect to save. Well you're on the right web site as our Boxing Day Sales Page is dedicated to collating just that information for Under U and many other favourite retailers and travel agents.