Fly the Blue Devil banner wherever your wheels take you with this Duke-inspired cycling cap. Crafted from breathable, sweat-wicking material, it proudly reflects the university’s iconic theme and colors, making it a top choice for fans and alumni who love to ride. Its one-size-fits-all design slides easily under any helmet, while offering comfort and lasting durability on every ride—be it a quick city loop or a grueling endurance challenge. Show your Duke pride and take on the road in unmistakable style.
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Free shipping on all orders.
Products are made to order and are usually dispatched between 3-5 business days after placing your order.
Free Shipping is available on all orders. Shipping takes 7-10 days to USA, Canada, Singapore & Western Europe. 10-15 days to Australia, Mexico, other parts of Europe & Japan. 14+ days to everywhere else.
All customs duty & import tax (if any) are the buyer's responsibility. We will always mark the value down for you to avoid paying high taxes.
All items can be returned within 14 days of receipt. Return postage is the buyer's responsibility. Please get in touch prior to returning your item.
In the unlikely event that an item arrives damaged, you will be entitled to a full refund. Please provide photographic evidence.
Male Size Chart
| Size | Height (Feet) | Weight (Lbs) | Chest Circumference (Inches) | Waist (Inches) |
|---|---|---|---|---|
| S | 5'2.6" - 5'6.2" | 110 - 121 | 35 - 36.6 | 25.6 - 28 |
| M | 5'3.4" - 5'7.3" | 121 - 143 | 36.6 - 39 | 27.2 - 29.9 |
| L | 5'6.5" - 6'0.1" | 132 - 154 | 39 - 41.3 | 29.9 - 31.9 |
| XL | 5'8.1" - 6'0.8" | 154 - 176 | 41.3 - 43.7 | 31.9 - 33.9 |
| XXL | 6'1.3" - 6'3.2" | 165 - 187 | 43.7 - 46.1 | 31.9 - 35.8 |
| XXXL | 6'1.2" - 6'3.2" | 176 - 198 | 46.1 - 48.4 | 33.9 - 37.8 |
| 4XL | 6'1.2" - 6'5.2" | 187 - 209 | 48.4 - 50 | 35.8 - 41.7 |
| 5XL | 6'2.4" - 6'11.1" | 209 - 243 | 50 - 52.4 | 37.8 - 45.7 |
Male Size Chart (Metric)
| Size | Height | Weight | Chest Circumference | Waist |
|---|---|---|---|---|
| S | 158cm - 167cm | 50kg - 55kg | 89cm - 93cm | 65cm - 71cm |
| M | 160cm - 170cm | 55kg - 65kg | 93cm - 99cm | 69cm - 76cm |
| L | 168cm - 177cm | 60kg - 70kg | 99cm - 105cm | 76cm - 81cm |
| XL | 172cm - 184cm | 70kg - 80kg | 105cm - 111cm | 81cm - 86cm |
| XXL | 180cm - 190cm | 75kg - 85kg | 111cm - 117cm | 81cm - 91cm |
| XXXL | 185cm - 190cm | 80kg - 90kg | 117cm - 123cm | 86cm - 96cm |
| 4XL | 185cm - 195cm | 85kg - 95kg | 123cm - 127cm | 91cm - 106cm |
| 5XL | 188cm - 210cm | 95kg - 110kg | 127cm - 133cm | 96cm - 116cm |
Ladies' Size Chart
| Size | Chest Circumference (Inches) | Waistline (Inches) | Height (Feet) | Weight (Lbs) |
|---|---|---|---|---|
| XS | 30.2 - 31.9 | 22.3 - 24 | 4'9.1" - 5'1" | 77.2 - 99.2 |
| S | 31.8 - 32.7 | 23.9 - 26 | 4'11.8" - 5'4.2" | 88.2 - 110 |
| M | 32.6 - 33.5 | 26 - 28 | 5'1" - 5'5" | 99.2 - 110 |
| L | 33.4 - 35.8 | 27.1 - 29.9 | 5'3" - 5'6.9" | 106 - 117 |
| XL | 35.7 - 37.4 | 27.9 - 31.1 | 5'5" - 5'8.9" | 115 - 123 |
| XXL | 37.3 - 39 | 29.8 - 33.9 | 5'6.9" - 5'10.9" | 123 - 137 |
| XXXL | 38.9 - 40.6 | 31.8 - 35.8 | 5'8.9" - 6'0.8" | 132 - 154 |
Ladies' Size Chart (Sizing in cm)
| Size |
Chest Circumference (cm) |
Waistline (cm) | Height (cm) | Weight (kg) |
|---|---|---|---|---|
| XS | 77 - 81 | 57 - 61 | 145 - 155 | 35 - 45 |
| S | 81 - 83 | 61 - 66 | 152 - 163 | 40 - 50 |
| M | 83 - 85 | 66 - 71 | 155 - 165 | 45 - 50 |
| L | 85 - 91 | 69 - 76 | 160 - 170 | 48 - 53 |
| XL | 91 - 95 | 71 - 79 | 165 - 175 | 52 - 56 |
| XXL | 95 - 99 | 76 - 86 | 170 - 180 | 56 - 62 |
| XXXL | 99 - 103 | 81 - 91 | 175 - 185 | 60 - 70 |