| Beer | Brewery | Style | ABV |
|---|---|---|---|
| XS Old Crustacean Barleywine 2010 | Rogue Ales | American Barleywine | 11.2% |
| XS Old Crustacean Barleywine 2012 | Rogue Ales | American Barleywine | 11.5% |
| XS Old Crustacean Barleywine 2013 | Rogue Ales | ||
| XTra | Brasserie Thiriez | 4.5% | |
| Xtra time | New Holland Brewing Company | American Blonde Ale | 4.4% |
| Xtra-Citra Pale Ale | Surly Brewing Co. | American Pale Ale (APA) | 4.5% |
| Xtreem Stout | Bierbrouwerij de Eem | 7.5% | |
| XV | Arcadia Brewing | ||
| XV (√225 Saison) | Brasserie des Franches-Montagnes | Belgian Saison | 5.0% |
| XVIII - Anniversary Ale | Firestone Walker Brewing Co. | American Strong Ale | 13.0% |
| XVIII Anniversaire | Saint-Arnould | German Doppelbock | 8.2% |
| XX | Central Waters Brewing Company | American Imperial Stout | |
| XX Bitch Creek | Grand Teton Brewing Co. | English Extra Special / Strong Bitter (ESB) | 7.5% |
| XX Bitter | Brouwerij De Ranke | 6.0% | |
| XX Black Angus Stout | Little Apple Brewing | American Stout |