Practical and versatile sport belt with stretchable pocket. For storing keys, mobile phone, cards, small waterbottle, etc, during your training session. In stretchable water-resistant nylon and with a long zip to facilitate putting things in and taking them out. (The pocket withstand water to an extent but is not waterproof, so remember electronics can be damaged if exposed to rain/water) The pocket is 24 cm long and stretchable between 4-10 cm across its width. The waist belt is adjustable between 60 - 100 cm.