It has an elasticated heel  and over the toe strap

The NAOT Women's Scandinavian Collection features a 3

a super-lightweight EVA material with a ripple tread

Mens size 6-10 also fits Ladies size 7-11

The Cotton Collection

Rollie Sidecut Punch Chalk Pink Size:37 It has an elasticated heelRollie Sidecut Punch Chalk Pink comes with punch hole detailing that expands with your feet and a side cut design for extra breeze. A style to fit any lifestyle adventure, work, travel or play. Cushy EVA midsoles Incredibly light and flexible to move all day (and night). Soft breathable linings keep your feet cool and dry, you can ditch the socks. Padded back collars No break in time or ankle rubs for instant happy wears. Anti slip rubber outsole