Feature: Notched lapel; 2-button single breasted closure,; 3 buttoned cuffs; 1 welt pocket on chest, 1 inner pocket; 2 flap pockets at front; fully lined. Materials: 80% Polyester and 20% Viscose materia, it is comfortable, breathable, softer, smoother, easier to wash and keep the shape. Size: Please refer to our Image Size Chart for the best fit. Toddler suit size: 2t,3t,4t,5,6；Boys suit size: 7,8,10,12,14,16；Teen youth suit size 18-20. Occasion: Boys blazer suit jacket for piano performance, wedding, prom, Easter, host, birthday parties, Christmas outfits etc. From formal to informal, suitable for various occasions.