Karl
Fostvedt

Freeride & Big Mountain
Freeride Skiing

Nationality: United States
Hometown: Ketchum, Idaho, USA

Equipment

2 entries · 2 categories

Skis

K2

114mm waist, signature pro model

114mm-waist signature pro model designed with Fostvedt; softer flex and deeper rocker lines than the standard Reckoner 110, with extra flax damping layers and a full edge-to-edge carbon sheet, built for playful powder skiing (pillows, cliffs, tree skiing).

Off-piste

Reference

Boots

K2

FL3X Revolve KF

Flex: 120

flex 120, signature pro model

120-flex signature 3-piece boot with K2's fully heat-moldable TPU Revolve Plus shell (99mm last width at 26.5); the stiffest Revolve model.

Off-piste

Reference

Setup verified 20 July 2026

Sources

About

American big-mountain and technical freeskier from Ketchum, Idaho, known as 'Crazy Karl.' Originally known for urban rail skiing (2012 iF3 Rookie of the Year, 2014 War of Rails winner), he transitioned into one of the sport's top big-mountain/backcountry skiers, winning the inaugural Kings and Queens of Corbet's Couloir competition in 2018, finishing 2nd in 2019, and winning again in 2021, the same year Idaho Mountain Express named him its 'Athlete of the Year.' In 2021 he founded his own production company, Native Earth Productions.

Fostvedt ('Crazy Karl'), from Ketchum, Idaho, filmed MSP's 'Return to Send'er' (Nov 2019) among numerous other film credits (D.O.S. Originally known for urban rail skiing (2012 iF3 Rookie of the Year, 2014 War of Rails winner), he transitioned into one of the best big-mountain/backcountry skiers around, winning the inaugural Kings and Queens of Corbet's Couloir competition in 2018, finishing 2nd in 2019, and winning again in 2021 -- the same year Idaho Mountain Express named him its 'Athlete of the Year.' In 2021 he also founded his own production company, Native Earth Productions, whose 'Brap Ski' series (now four volumes) combines snowmobiling and skiing to access remote backcountry terrain. Equipment: rides his own signature K2 pro model, the Reckoner KF (114mm waist, softer flex and deeper rocker than the standard Reckoner 110, with extra flax damping layers and a full carbon sheet), paired with his own signature K2 FL3X Revolve KF boot (120-flex, fully heat-moldable TPU shell) -- both confirmed via K2's own 24/25 product launch coverage.