THIS MEN'S SHORT IS FOR: Runners who want added coverage and secure support from a built-in boxer liner. Perfect for training days, long runs, gym sessions, or anyone who prefers a longer inseam with full mobility and zero distractions. STRETCH BOXER BRIEF LINER: Moisture-wicking liner with smooth flatlock seams stays comfortably in place, providing chafe-free support through every mile. FREEDOM TO MOVE: Updated flat waistband with adjustable drawcord and stretchy outer shell gives you a secure fit with unrestricted range of motion. BUILT-IN STORAGE: Side zip pocket fits most phones, while four expandable hip pockets stash keys, fuel, or a liner key pocket—no bounce, no bulk. RESPONSIBLY MADE: Crafted with bluesign-certified materials and recycled fabrics in both shell and liner for reduced environmental impact.