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X400 Thermal

X400 Thermal
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The X400 Thermal is perfect for ice anglers who want to go ice fishing with their friends and family and stay warm and comfortable. This shelter is constructed with a full thermal skin, has all of the features like our thickest poles and tub for anglers that need the most rugged ice fishing shelter but want to go with others. Our largest flip-over fish house, the X400, has a whopping total of 68 square feet of fishable space! It also includes two lights sticks, deluxe seating for four, and a 1 ¼ pole system. And our Side Door System allows anglers to get in and out with ease! The X400 Thermal flip-over shelter by Clam Outdoors is the ultimate in space, comfort, and durability. This shelter comes with a three-year warranty.

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  • Full thermal with 900 total denier fabric retains heat & reduces condensation
  • 90 grams of insulation per square meter
  • Four person shelter
  • Extreme 1 ¼” pole system with Rapid Pole Slide Extreme  (RPSX)
  • Four 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
  • Six total doors!
  • Side doors to make it easier to go in and out
  • Tub and poles made in the USA

Accessories included:

  • Battery bracket
  • 2 Large dimmable light sticks
Product Video

Product Video



  • Warm and roomy, the best shelter for the whole family
  • Fishes four anglers comfortably
  • More standing room - 81” center height
  • Toughest 4-person flip-over shelter on the market!
  • Compatible with X200 removable floor (sold as an accessory)
  • Part of the X-Series line that feature the thickest poles and skins and the toughest tubs 
  • 3 year warranty!
  • Six total doors!
  • Includes accessories!


  •  Set up size: L 185” x W 75” x H 81”
  • Center height: 81”
  • Pack size with seats: L 75” x W 49” x H 26”
  • Weight: 170 pounds
  • Fishing Area: L 2 (70”) x W 2 (71”)
  • Fishable Square Feet: 34 square feet each side (68 total square feet)
  • Seat: Swivel Deluxe Padded
Compatible Accessories
Operation Manual
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