Time Traveling Mode The contrast between the muted blue and electric yellow stripe brings a hip, retro vibe to every wrist. Our Knit Apple Watch Band - Navy and Yellow Stripe is a high - performance, yet stylish watch band all in one. Crafted from custom, high-quality hypoallergenic knit material, you can rest assured youll always have a comfortable wearing experience. Compatible with Apple Watch 38mm, 40mm, and 41mm size