“Fashion” and “Canada” aren’t often included in the same sentence. Now that one of the country’s premier women’s clothing retailers has debuted in Boston, perhaps that will begin to change—at least locally. Aritzia (800 Boylston St., 617-236-5818, aritzia.com) has opened in a 6,000-square-foot, custom-designed space at the Shops at Prudential Center, offering the latest looks and accessories from brands including J Brand, Mackage, Rag & Bone, Levi’s, Adidas and Herschel, as well as its own in-house fashion lines like the minimalist Babaton, retro Talula and sporty Parklife. Stock up on spring essentials, from lightweight dresses and knit tops to oversized sweaters and spandex leggings, before the season passes you by.