Balaclava with open back. Main features: - Adjustable magnetic buckle at the back of the neck makes it easy to put it on and off; - Open back allows for good ventilation as well as various locations for ponytail/bun; - Low profile elastic around face edge and seams on the outside ensure next to skin comfort in the sensitive areas, like neck and face; - Works well under all kinds of helmets: cycling/rock climbing/ski;— WEIGHT (size M/L)- 36 g / 1.25 oz.— FABRIC - grid fleece;— CLOSURE - adjustable magnetic buckle (Fidlock);— SIZE - XS, S, M, L, XL. Model is wearing size M. Note: head size doesn't necessarily match your clothes size, but as a rule of thumb people that are 155 - 165 cm tall would wear S or XS, height 165 - 180 cm should pick size M, and people taller than 180 should go with size L. Also if your neck is on the larger side - size up. If you aren't sure - contact me at [email protected] and we will pick a right size for you. MYOG Want to make your own? Get patterns and instructions: https://functionalclothinglab.com/products/sewing-pattern-balaclava-open-back NOTE: due to the open back construction back of the neck is exposed to cold. When temperature is below 10 degrees (Celsius) it becomes noticeable. Recommended solution: wear balaclava in combination with: hood / neck warmer / jacket with high collar / turtleneck baselayer etc. Questions? Contact me at [email protected];