In summer you often need to take an additional layer to throw over your pretty summer dress. The problem is cardigans are getting tired and are an overused throwover. The Fashion Spot suggested introducing a pastel blazer or jacket instead.
A pastel jacket
In a fresh, summery hue a jacket will provide just the right warmth and give your outfit an edge that the cardigan can’t. In particular, mint green is on trend this season, especially as a retro leather jacket. A shell pink softens the tough image a leather jacket can give off and is perfect for summer too.
A pastel blazer
This screams summer. Layered over slim black pants or a pair of dress shorts and heels, a blazer can look super chic. Try a striped pastel blazer over an all-white look.
A floral blazer
A blazer in a floral fabric makes a great statement and looks fresh.
A ruffled blazer
Add a touch of feminine charm to an outfit with this jacket. It’ll look stunning in a pastel pink teamed with white ankle-skimming pants.
A silk blazer
This says professional and brings a casual yet corporate feel to an outfit. Try a soft lavender for a feminine look.
Source:
http://www.thefashionspot.com/shop/313933-pastel-jacket-shopping-roundu/#/slide/6