透湿 とうしつ防水 ぼうすい せい素材 そざいなら
tōshitsubōsui sei sozainara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 透湿防水性素材

1. If it's a moisture-permeable waterproof material; Provided it's a moisture-permeable waterproof material

Nara Conditional