Regular condoms don't fit you. Even the "XL" condoms they had at the store feel like they're squeezing the life out of your dick. Turns out that at 6.25 inches circumference you have a very thick penis and it's too big for the vast majority of condoms out there. You can try, but they'll hurt and break all over the place. So what are you to do?
It's time to turn to online shopping where you can find much larger condoms to fit your girthy cock. It's an unfortunate reality that your size is just so rare that it's not worth it for most stores to stock condoms that fit you. On top of that, if you're in the USA then you have to deal with the FDA not even authorizing condoms of an appropriate size — so not only are you shopping online, but you're importing. At 6.25 inches girth (let's double-check that number) you should be looking at condoms in the 69-72mm nominal width range, and there are a few that fit that bill.
If you prefer a snugger fit, there are plenty of slightly smaller options out there.

My.Size Pro 72
72mm nominal widthSay hello to the new largest traditional condom on the market, the 72mm nominal width My.Size Pro 72. Made from hypoallergenic Vytex latex, this condom is made for the thickest of penises.

EXS Boys Own
56mm nominal widthMost lubricated condoms get a water-based lubricant, which is fine… but you'll probably have to reapply. Boys Own? A flared design featuring a long-lasting silicone-based lubricant.

My.Size 69
69mm nominal widthThey don't come much roomier than these. Made for the thickest of dicks, My.Size 69 offers loads of space.

Kung Mega Loose
69mm nominal widthAmong the largest condoms on the market, Kung Mega Loose offers plenty of room for the thickest of dicks.

Pasante Super King
69mm nominal widthOne of the widest condoms available anywhere, the Pasante Super King is a great fit for men with 6 inches of girth or more.

Durex XXL (64mm)
64mm nominal widthNew to the market in 2020, the redesigned Durex XXL condoms offer a 64mm nominal width in a cylindrical shaft that's roomy from base to tip. These are the largest condoms you can buy in stores in the USA.

MyOne 64
64mm nominal width(Fomerly MyOne 22) MyOne's roomiest offering, the 64 series brings 64mm nominal width for the girthiest of dicks, and a range of lengths from 5.6 inches all the way up to 9.3 inches. No matter your size, there's a fit for you.

FC2 Female Condom
Turn the world on end with the FC2 Female Condom, a soft nitrile internal condom that is inserted into the vagina and takes on her shape. It's compatible with penises of all sizes, but is particularly advantageous for very thick men.