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Built to comfortably fish three anglers, the X300 Pro Thermal rounds out our popular X-series of flip-over fish houses. The Clam X300 Pro Thermal is the perfect ice fishing shelter for guides or a dad with kids. And our unique Side Door System lets anglers get in and out of side doors with ease through convenient side doors.  Constructed with our heaviest skin — 1800 Denier fabric — the X300 Pro Thermal retains the heat and reduces condensation. As one of the toughest shelters on the market, the X300 was designed to outperform, and meet the needs of the most demanding ice anglers who fish in extreme conditions.  The X300 Pro Thermal by Clam Outdoors also includes light stick, travel cover, and a battery bracket. Includes a three year warranty.


  • Full thermal with 1800 total denier fabric retains heat & reduces condensation
  • 90 grams of insulation per square meter
  • Extreme 1 ¼” pole system with Rapid Pole Slide Extreme (RPSX)
  • Features separate side doors for easy access in addition to a front and back door
  • Includes large dimmable light stick, battery bracket, travel cover, and hammocks under each seat for storage
  • Three deluxe swivel seats that move front to back, left to right and are removable
  • Co-extruded gray plastic for lighter color inside tub – easier to locate gear
  • Four total doors!
  • Side doors to make it easier to go in and out
  • Ability to add removable Fish Trap Removable Floor (patent pending)
  • Tub and poles made in USA



  • Heaviest thermal skin - 1800 denier fabric that retains heat and reduces condensation
  • Fishes three anglers comfortably
  • Side doors for easy access for all anglers!
  • More standing room - 83” center height!
  • Includes light bar, travel cover, and battery bracket!
  • Compatible with X300 removable floor (sold as an accessory)
  • Only series in the market with four doors - front, back and sides


  • Set up size: L 113" x W 86" x H 83"
  • Center Height: 83"
  • Pack Size with Seats: L 86" x W 45" x H 28"
  • Weight: 195 Pounds
  • Fishable Area: L 83" x W 69"
  • Fishable Square Footage: 40 Square Feet
  • Seat Type: Swivel Deluxe Padded
  • Seat Weight Capacity: 300 lb.
  • Fabric: 1800 Denier
  • Floor Capability: Yes - X300 Removable Floor
  • Number of anglers: 3 
  • Warranty: 3 Years against manufacturer's defects
  • Number of Doors: 4
  • Number of Windows: 6
  • Tow Rope Included: Yes
  • Insulated: Yes
  • Tub Size: L 86" x W 45"
  • Number of Vents: 2