Lightning Bolt “A Pure Source” Blue Knit Cotton Crewneck Sweater Score a classic surf-inspired knit with this Lightning Bolt “A Pure Source” blue crewneck sweater — perfect for laid-back beach style, everyday casual, and Y2K-inspired outfits. Made from soft, breathable 100% cotton and crafted by the iconic surf brand founded in Hawaii, this sweater blends heritage surf culture with modern streetwear vibes for a versatile wardrobe staple. Brand: Lightning Bolt Style: Knit cotton crewneck sweater Color: Blue Size: Small (S) Material: 100% cotton Fit: Classic crewneck silhouette Key Search Terms / Features: Lightning Bolt sweater, A Pure Source knit, Blue cotton crewneck, Surf brand sweater, Beachwear knit, Y2K casual style, Vintage surf style, Casual chic knit, Everyday layering piece Upgrade your surf-inspired rotation with this timeless crewneck that’s built for comfort and everyday versatility.