Here are some products to keep you protected on that four-hour ride.

According to the Melanoma Research Foundation, a sunscreen should be broad spectrum, meaning it protects against both UVA and UVB rays, and have an SPF of 30 or higher. Reapplication is necessary every two hours, and every hour if you’re sweating or swimming. Here are some products to keep you protected on that four-hour ride.

RELATED: 6 Things Triathletes Should Know About Sun Protection

Beyond Coastal Active Face Stick
$7, Beyondcoastal.com
The face stick can slip into your jersey pocket for quick and mess-free application. It protects against UVA rays and 97 percent of UVB rays.

Naawk
$10 (6-ounce tube), Naawk.com
Naawk offers broad-spectrum coverage in both SPF 30 and SPF 50 options. The sunscreen also boasts water resistance for up to 40 minutes.

Endurance Shield
$24 (4-ounce tube), Enduranceshield.com
Professional triathletes Alicia Kaye and Jarrod Shoemaker created this broad-spectrum SPF 45 sunscreen that doubles as a light moisturizer; the company also makes a SPF 18 lip balm.

UV Skinz Sun Sleeves
$20, Uvskinz.com
These sleeves offer UPF (ultraviolet protection factor) 50+ and cover both your arms and hands to protect from the sun and elements.

New Balance Icefil Short Sleeve
$40, Newbalance.com
This moisture-wicking fabric lowers your skin’s temperature while wicking away sweat and offering UPF 40+ protection.

Through MRF, skin screenings are now offered at all Ironman-sanctioned events. Learn more at Melanoma.org.