The Pro Laced Boot is made from4mm linedneoprene and has been developed to give ultimate support for hiking and trapezing.We recommend using with a pair of the innovative Rooster Lace Tidy Boot Gaiters designed to ensure your laces stay put, dont come undone and, more importantly, dont become tangled at inopportune moments. See them hereFeaturesImproved wrap-around ribbed sole over top of boot for protection and superior grip. Provides extra padding and hiking securityExpanded gusset allows for greater ease when putting them on and taking them offLonger, more adjustable laces to accommodate varying ankle and calf sizes.SizingEUUKFoot Length35220.8cm36321.6cm37422.4cm38523.2cm39624.0cm40.56.524.8cm41.57.525.6cm42.58.526.4cm43.59.527.2cm4510.528.0cm4611.528.8cm471330.2cm