Double-elastic technical fabric (nylon 82%, elastane 18%), 250 gr. elastic and water-repellent. with the following features: – sweat absorption rapide – excellent protection factor against ultraviolet UPF 50 – maximum comfort and elasticity – excellent shape retention Anatomic back cut, zipped front pocket for cell phone, back pockets with flaps and press studs, central cross-over loop, non-slip silicone tapes, elasticated ankle insert.This product features Italian sizes:38 IT = 34 FR40 IT = 36 FR42 IT = 38 FR44 IT = 40 FR46 IT = 42 FR48 IT = 44 FR50 IT = 46 FR