It stretches little bit that helps and make feel much more comfortable. Well built.
Great cummerbund that comes with the K5 plate carrier, or you could probably put it on other carriers. Just be advised, if you're purchasing the K5 that comes with the cummerbund and, you plan on putting 1.5inch plates get 1 size bigger. I purchased the K5 and went with the S/M cummerbund and, it's tight with my level IV plates. I plan on buying large in the future because, it'll be tighter with the side plates I'm going to add.
Overall, extremely great and, comfortable cummerbund that flows great with your body movements due to the stretch part. Agilite has yet to disappoint me, I rate them the best professional quality gear.
K5 Plate Carrier
Excellent professional plate carrier. Is extremely comfortable, even when fully kitted out. I have 2 Level IV plates that weigh 8.5lbs each and, 1.5 inches thick. I suggest if you plan on having 1.5inch thick plates, you order your cummerbund 1 size bigger.
This is hands down the best plate carrier I have ever used. The quality of construction has to be seen to be believed.