The Mogul Diva jumpsuit is cut to fit close to the body, but also to allow for a fine merino wool base layer underneath. If you like to wear both a base layer and a thin ski sweater on top, you should be able to. The 4-way stretch fleece-backed softshell fabric is both snug fitting and forgiving.  The above measurements provide a general guideline to fit, as body types vary greatly. Please also note that the jumpsuit's inseam length is cut slightly short to allow for a better fit over ski boots.