Gronk x BYLT Flex Trunks
Gronk x BYLT Flex Trunks
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Gronk x BYLT Flex Trunks
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Description
Description
Designed for game-changing comfort, the Flex Trunk from the exclusive Gronk x BYLT Underwear Collection offers a shorter length with the same premium performance and support. Made with flex-knit fabric and cool-touch mesh zones, it keeps you cool and comfortable all day. Available in limited-edition prints handpicked by Gronk.
- Fit Profile: Tapered
- Actual Fit: True to size
- 3" inseam
- No-roll comfort-fit waistband
- Signature side-fly
- Ventilated mesh cooling features
- 4-way stretch
- Enhanced mobility
Fabric: Main Body: 90% Nylon, 10% Spandex Mesh: 86% Polyester, 14% Spandex
Wash & Care: Machine wash cold with like colors. Tumble dry low. Do not iron.
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Fabric
Fabric
Fabric: Main Body: 90% Nylon, 10% Spandex Mesh: 86% Polyester, 14% Spandex
Wash & Care: Machine wash cold with like colors. Tumble dry low. Do not iron.
Shop Alternative Styles

Free Shipping
Free Worldwide Shipping & Duties Covered
We are pleased to offer Free Worldwide Shipping on all orders, delivering to all countries and regions supported by our logistics network. There are no restrictions on order quantity, parcel size, or shipment weight — every order ships at no cost to you. In addition, all customs duties, import taxes, and government-imposed fees associated with your shipment will be fully covered by us, ensuring you will not incur any extra charges upon delivery.
Please note that delivery times may vary due to local customs procedures and carrier conditions, but your shipping and customs costs will remain completely free under this policy.
Free Returns
We provide a secure and reliable Free Returns service for all customers. Items that remain unused and unopened may be returned within 60 days for a full refund.
All return shipping expenses, including customs-related fees, are fully covered by us.
Refund processing will be completed within 4 weeks from the date the return shipment is sent, regardless of whether the package has arrived at our facility. In general, refunds are finalized significantly earlier, ensuring a smooth and dependable experience.