Half of British men say they have no idea what size their partner is 54 per cent of men said they were clueless about clothes 29 per cent admitted having to rely on shop assistants Just 31 per cent of men were confident about clothes buying One would hope a man could tell the difference between a slim size 10 and a much, ahem, curvier woman. But, according to a recent survey, it appears not. It seems men are completely clueless when it comes to their partner's dress size - even those who have bought for their loved ones in the past. The survey, conducted by vouchercloud.com, asked 1,921 men across the UK who had been in their current relationship for six months or more. Baffling: For more than half of British men, buying clothes for their partner is seriously challenging Unimpressed: Man's inability to learn dress sizes can prove a source of tension Half of the men admitted they simply had "no idea" of their other half's measurements, despite 54 per cent of those saying they had bought for them previously. A total of 19 per cent of men were more hesitant, and thought they did, while 31 per cent said they were sure they could pick out the right sized dress in the shop. The majority of those surveyed who said they were clueless, but had chosen items for their partners in the past, said they had just guessed. 29 per cent said they had been forced to ask an assistant for help. Unsurprisingly perhaps, 17 per cent of men said they had opted to "buy a small size as a form of flattery should it be the incorrect size," for fear of causing insult. When asked if this had worked out well for them, just under two thirds, 65 per cent, admitted to "getting it wrong" on at least one occasion. Those surveyed were quite shameless about their ignorance - with 62 per cent of those who had no idea admitting their partner was probably aware. Even when asked if they would be more confident about buying clothes for their wives and girlfriends if they knew their size, 57 per cent said no as they would worry about choosing the right style. Confused: 57 per cent said they had no idea what sort of clothes their other halves would want to wear Matthew Wood, of vouchercloud, said: "Most men know that buying clothes for your partner can be a bit of a minefield. Dress sizes really aren't that complicated though. You don't need to be Poirot to work out what it is! When it comes to style though, that's up to the individual. Having said that, knowing the correct size will mean that even if you buy the most garish of dresses, at least your partner will be content that there was at least some thought behind the purchase.