Personally think that the design idea is quite novel - the internal account is neither a half yarn nor a full sand, it is somewhat similar to the snow wolf's closed account, but the account door has two layers, one is a yarn weaving is the same as the internal account material . According to the introduction, the weather was cold and closed with double doors, and the weather was hot with gauze. However, it was estimated that the accounts made with the so-called “breathable cloth†inner account material would cause condensation and frost formation in winter. Material passing, or a small part of the gauze in the account, should be able to achieve "insulation" effect, but look back, relying on moisture-proof pad and sleeping bag insulation is more effective and reliable.
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