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Sphere Extreme

Determination: VHT

Expedition tent for the most demanding conditions

Main advantages

High strength and stability of the structure
High reliability
Buildable without bedroom

Used materials

Dural 7075 T9

The construction of tents of the Extreme series is suitable for use in the most difficult expedition conditions thanks to the use of stainless duralloy with high strength (higher than 7001 T6) and high rigidity.Precise design and surface treatment minimize the risk of defects.

is a fabric manufacturing technology designed to increase resistance to mechanical damage while maintaining weight

At regular intervals, thicker fibers forming a grid are woven transversely and longitudinally into the tropic material, thereby preventing further crack propagation if the fabric is torn.

A highly effective and timeless water-repellent effect is achieved by applying a silicone treatment to the tent's canopy.

In this technological process, the fibres of the fabric are impregnated with silicone, making the fabric extremely water-repellent with self-cleaning ability. The so-called lotus blossom effect occurs, where water droplets are repelled from the surface of the fleece, water is not retained in the fabric even when it is imperfectly switched off and quickly drains off in the form of droplets, taking all the dirt with it. Another important effect of siliconisation is a significant increase in the strength, elasticity and tear resistance of the siliconised fibres of the fabric.

Detailed Description

Sphere Extreme

Expedition tent for two to three people. Large entrances at both ends of the tent and a spacious vestibule are ideal for storage outside the bedrooms and a cooking area.

The use of duralumin tent poles in combination with a construction with five crossings guarantees high strength and stability of the tent.

Six large ventilation holes take care of the drainage of moist air and thus prevent water condensation on the inside of the rain fly.

Stan Sphere Extreme postavený

Technical specification

Weight 4.25 kg
Weight without inner tent 3.15 kg
Package Size ⌀18 x 50 cm
Number of people 2 - 3
Amount of enterances 2
Construction type Cupola
Amount of vents 6
Number of poles / crossing points 5 / 5
Buildable without a bedroom Yes
Height of tent (bedroom) 120 (110) cm
Siliconised Yes
Taped seams No - Expansive treads
Number of pins 21
Category Expedition
Material of poles Dural 7075 T9
Pole diameter 9.5 mm
Flysheet material Nylon RipStop, Siliconization 4 000mm H2O, UV protection
Groundsheet material Nylon, PU coating 10 000mm H2O

půdorys stanu Sphere Extreme


The tent is double-layered and consists of an inner tent and an outer layer – rain fly. The inner tent has a trapezoidal floor plan with two entrances. The tent has a spacious vestibule that can be used to store luggage or provide a leeward area for cooking.


The tent is based on the principle where the tent pole structure is strung in the sleeves outside the rain fly. Rain flyand the inner tent (which is suspended under the rain fly) are erected at the same time after threading the tent poles through the sleeves. The advantage of this method is that the inner tent can be detached from the rain fly, and the tropic can then be erected separately, resulting in a single-shell tent without a floor.


It is located at the top of the dome of the rain fly. The canopies of the ventilation windows are shaped so that they are not tilted by the wind, if necessary they can be closed with Velcro. This prevents leakage even during rain with strong wind.

Building a tent

Put the tent poles of the structure through the sleeves outside the rain fly and insert the ends of the tent poles into the brass eyes on the loops of the lower edge of the rain fly. Then we fasten the buckles on the straps near the ground inside the tent and the rain fly is erected. We hang the inner tent in the loops on the inside of the rain fly. We anchor the erected tent with pegs and cords and fasten it with plastic clips.

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  • (Last update 19.06.2024)