

PUMP!
The PUMP! Round2 Blue Backless Trunk is a fresh take on the hybrid brief-jock, blending structure with freedom. Designed with a slightly fuller cut than its backless brief counterpart, this style provides a more defined silhouette while still embracing the daring open-back design. The ribbed fabric offers a subtly athletic texture, and the thick elastic waistband - complete with the signature P! logo - ensures a secure and comfortable fit. Unlike other hybrid styles, the Round2 Blue Backless Trunk features supportive elastic back straps, enhancing fit and feel for all-day movement.
Perfect for those who like a little extra coverage without sacrificing boldness, this trunk is made for confident, high-energy wear. Whether you're powering through the day or making a statement at night, this piece keeps you supported, stylish, and ready for anything.
Size Chart
Size Chart
Size Chart | |
S | 28.5" - 30" | 71-76 cm |
M | 30.5" - 32" | 77-81 cm |
L | 32.5" - 34" | 82-86 cm |
XL | 34.5" - 36" | 87-91 cm |
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