Ryanair is notoriously strict regarding their 10kg cabin bag policy and has only become more vigilant in 2026. If you have purchased "Priority & 2 Cabin Bags," you are allowed a 10kg wheelie bag (55x40x20cm) and a small personal item. At the boarding gate, agents frequently use metal sizers and, in some cases, digital scales to check compliance. If your bag does not fit easily into the sizer—including wheels and handles—or exceeds the 10kg limit, you will be forced to pay a "Gate Bag" fee, which can be as high as €45 to €70, and your bag will be placed in the aircraft hold. Many travelers try to "overstuff" soft-sided bags, but Ryanair staff are trained to look for bulges that would prevent the bag from fitting in the overhead bin. To avoid these hefty fees, it is often cheaper to prepay for a checked 10kg bag at the time of booking if you suspect you might be over the limit. Additionally, the "small personal item" must fit entirely under the seat in front of you; if it is deemed too large, it may also be subject to an extra charge, leaving very little room for error with this low-cost carrier.