If some clothing is available, the covering that can reasonably be achieved remains required; total inability should not be assumed merely because full covering is impossible.
A garment affected by impurity can create a conflict between covering and purification. The exact ruling depends on the clothing, impurity and available alternatives.
The primary text here addresses a person with no garment at all.
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Conditions of Prayer: Purity, Covering, Intention and Qiblah
If some clothing is available, the covering that can reasonably be achieved remains required; total inability should not be assumed merely because full covering is impossible.
A garment affected by impurity can create a conflict between covering and purification. The exact ruling depends on the clothing, impurity and available alternatives.
The primary text here addresses a person with no garment at all.