Design duo BillyKirk has lightened their usually heavy leather accessories for spring on the occasion of their second collaboration with Opening Ceremony. The collection mashes up railroad stripes and nautical fun with bright red, white and blue messengers, totes and mason tool-bags. OC can add yet another notch to its belt with this inspired partnership, fusing playful colorways with BillyKirk's utilitarian silhouettes and sturdy leather finishing. More images after the jump. (Via Selectism)