Tried larger ear tips ?? Makes for a better seal and sound ,also try and rotate them backwards or forwards depending which suits best when in your ear
The actual body of the bud looks chunky to me so I can see why they stick out of people's ears for some , my buds+ have wing tips which is a massive help
@SianRhian: As per the advice offered above, please try one of the larger eartips provided in the box to help you find the perfect fit. In the meantime, please check out the handy guide below.