Squirrelsuit

Wondrous item, uncommon (can be attuned to)
  Worn over the clothes, these baggy suits fully embrace, but never quite attaining, the ‘one-size fits all mantra’. The glide-suit takes one minute to don or doff. While worn, the wearer gains a glide speed of 60 feet; for each 30 feet travelled, the wearer drops by 5 feet.
  Attunement. An unattuned wearer is ‘bedraggled’. Whilst bedraggled, it has disadvantage on all Dexterity saving throws; and all attack rolls against the wearer have advantage. Upon attuning to the suit, it magically cinches in to the body, the wings concertinaing into groin and underarm pockets. An attuned wearer is never bedraggled and has advantage on any Dexterity (Gliding) checks made whilst wearing the suit.