Shop UNIONBAY jeans for men for $40 and under! UNIONBAY men’s jeans are available in regular fit, loose fit and slim fit. UNIONBAY uses premium denim in our jeans, which means they feel good to wear, look good, and are durable enough to stand up to repeated wear and repeated washings. Designed to fit most body types, they are comfortable and provide a flattering cut. These men’s jeans are available in a dark denim wash and a light denim wash.