Look for Tabs to Lengthen the Waist for a More Comfortable Suit.
When you buy a suit, you want one that is perfect not only now, but also for a long time. For your next suit, look for a waist extender that is more comfortable and adjustable at the waist and crotch. This GQ video explains why.
As mentioned in the video, even less expensive suit brands are starting to offer waist-lengthening tabs on their pants. This feature helps keep pants in place at the waist without using a belt and can be adjusted if you gain or lose a few inches over the years without having to buy a brand new suit. You probably won’t be able to add another to an existing suit, but even if you’re looking for new formal pants to wear under a blazer or jacket, they are worth checking out.
4 Easy Suit Upgrades For Under $ 100 | GQ (Youtube)