Knitwear is big for Spring. What I love about Tess Giberson is her use of inventive knits and unexpected patterns. Take, for example, this knit sweater with its mesh sleeves and ribbed cuffs. Just that little flash of arm underneath sheer fabric is super cool. Paired with Tess’s take on sweatpants for Spring, it’s a streetwear-influenced look that elevates comfy to chic. As you can see, PJ’s aren’t for just for nighttime anymore. The pajama pant…