THE ANTIDOTE 2026
Where are we going? Wherever feels good...
When we introduced the PASSPORT - the feedback from our Team riders, Retail partners, and the conversations we’ve had in the liftlines - we knew we had a winner. The waist width, sidecut, camber profile, and taper were spot on - but some riders we spoke to were looking for something a bit more robust for higher speeds and steeper terrain, and we said…”let’s make some prototypes.” We did, they were okay, so we made some more, and some more, and they f#cking ruled. The result of proto round #3… the COMMONWEALTH - using the same shape and geometry that has made the Passport successful, with a more “beefed up” feature set for riders looking for something a bit more demanding. We believe that everyone should be able to experience the mountains - so the Commonwealth was designed and tested for all-genders. Starting at a 146 and sizing all of the way up to 166W with it's snowboard’s construction, waist width, and flex profile that is scaled to meet the needs of the riders for each respective size.
Details
Rocker Type: Camber – The most responsive camber profile in the line features camber running from in front of the front foot to the tail of the board. This gives the rider the most precision and control possible in any terrain.
Flex: 7/10
Core: A1 Core – Lightweight, snappy, and durable, the all-new A1 Core is made from three renewable species of timber - bamboo, aspen, and paulownia. Aspen-dominant to highlight the snap and response of this wood, it's combined with bamboo at 30 ° underfoot to increase strength, supercharge the edge-to-edge response, and increase the pressure distribution along the edge. They've also placed lightweight paulownia in the tip and tail help to reduce swing weight.
Laminates: Triaxial Glass – A glass laminate with diagonal layers that adds torsional stiffness for increased stability and improved edge hold. The fibers three layers of fibers are woven at 45° , 45° , and 0° . This makes for a more responsive ride longitudinally and torsionally.
Spectral Braid™ – K2’s Patented Spectral Braid is a first-of-its-kind variable angle reinforcement that allows for precision tuned torsion and flex by altering the fiber orientation along the length of the snowboards. This makes snowboards feel lively, energetic, and remarkably composed.
Base: Wax-Infused Sintered 4001 Base – Built using the hardest and fasted sintered base material on the market, the Wax-Infused Sintered 4001 Base holds wax longer than other sintered bases for smoother, longer lasting glide.
Topsheet: SnoPhobic Topsheet – Helps eliminate snow buildup when it gets deep.
Specs
- Terrain: All-Mountain, Freeride, Powder
- Ability Level: Intermediate-Advanced
- Rocker Type: Camber
- Shape: Directional
- Flex Rating: Stiff
- Binding Mount Pattern: 2x4
- Core/Laminates: Bamboo, Carbon, Wood
- Warranty: 5 Years
Size Chart
| Size (cm) | 146 | 149 | 151 | 151W | 154 | 154W | 157 | 157W | 159W | 160 | 162W | 163 | 166W |
| Effective Edge (mm) | 1090 | 1120 | 1140 | 1170 | 1190 | 1210 | 1210 | 1230 | 1230 | 1240 | 1230 | 1260 | |
| Tip Width (mm) | 288 | 292 | 294 | 300 | 299 | 307 | 311 | 314 | 306 | 318 | 310 | 319 | |
| Waist Width (mm) | 243 | 246 | 248 | 254 | 252 | 260 | 263 | 266 | 258 | 269 | 261 | 269 | |
| Tail Width (mm) | 280 | 284 | 286 | 292 | 291 | 299 | 311 | 306 | 298 | 310 | 302 | 311 | |
| Sidecut Radius (m) | 5.3/7.3/4.8 | 5.5/7.5/5.0 | 5.6/7.6/5.1 | 5.6/7.6/5.1 | 5.8/7.8/5.3 | 5.8/7.8/5.3 | 6.0/8.0/5.5 | 6.2/8.2/5. | 6.2/8.2/5.7 | 6.4/8.4/5.9 | 6.4/8.4/5.9 | 6.6/8.6/6.1 | |
| Stance Setback (in) | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | 0.75 | |
| Stance Range (in) | 19 | 19 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 23 | 23 | 23 | |
| Rider Weight (lbs) | 90-160+ | 90-160+ | 120-190+ | 120-190+ | 120-190+ | 120-190+ | 120-190+ | 130-210+ | 130-210+ | 140-230+ | 140-230+ | 140-230+ | |
| Width | Regular | Regular | Regular | Wide | Regular | Regular | Wide | Wide | Regular | Wide | Regular | Wide |