Family tent pack size 39 x 87cm cable entry point ows system force 9 wind stabilizer system capacity 6 man poles fibreglass series outwell evolution outer material polyester outer material property pu coated inner materials polyester breathable hydrostatic head flysheet 4 000 mm hydrostatic head groundsheet 10 000 mm base materials nylon 210t 70d pole diameters 11 127 85 mm security standard fire retardant material pack size 80 x 45 cm