Built like runner shorts. Worn like a Sunday.
Borrowed from classic military runner shorts and cut for the weekend. The Core Runner Boxer is loose where you want air, shaped by signature side insets so it never reads boxy, and soft 100% cotton everywhere.
Fabric
100% Cotton. Soft, breathable, and natural against the skin — the boxer you sleep in, lounge in, and forget you're wearing.
Fit & Silhouette
Men's cotton runner boxer, semi-fitted and mid-rise — sits at the natural waist with a 3" inseam that frees the leg without the flap of a traditional boxer.
Side Insets
Signature side insets shape the leg opening the way runner shorts do — a cleaner line and more room to move.
Fly
Functional button fly — the classic detail, kept because it works.
Leg Openings
Runner-style openings move air freely and never cling to the thigh.
Waistband
1.5" exposed elastic waistband with the new signature C-IN2 logo in repeat.
Fit note
True to size. For a looser fit, go one size up.
Care
Machine wash.
Imported.
Core
C-IN2's foundation — every essential silhouette, cut in soft, breathable 100% cotton that feels better the longer you own it. The drawer you build once and reach for every day.
Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the lead, bisphenols and phthalates level requirements.
In compliance with the General Product Safety Regulation (GPSR), Dark Yarn, and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 6595 Roswell Rd STE G PMB 4103 Atlanta GA 30328 or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.
Pairs well withs
Core Signature Runner Boxer Black
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Built like runner shorts. Worn like a Sunday.
Borrowed from classic military runner shorts and cut for the weekend. The Core Runner Boxer is loose where you want air, shaped by signature side insets so it never reads boxy, and soft 100% cotton everywhere.
Fabric
100% Cotton. Soft, breathable, and natural against the skin — the boxer you sleep in, lounge in, and forget you're wearing.
Fit & Silhouette
Men's cotton runner boxer, semi-fitted and mid-rise — sits at the natural waist with a 3" inseam that frees the leg without the flap of a traditional boxer.
Side Insets
Signature side insets shape the leg opening the way runner shorts do — a cleaner line and more room to move.
Fly
Functional button fly — the classic detail, kept because it works.
Leg Openings
Runner-style openings move air freely and never cling to the thigh.
Waistband
1.5" exposed elastic waistband with the new signature C-IN2 logo in repeat.
Fit note
True to size. For a looser fit, go one size up.
Care
Machine wash.
Imported.
Core
C-IN2's foundation — every essential silhouette, cut in soft, breathable 100% cotton that feels better the longer you own it. The drawer you build once and reach for every day.
Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the lead, bisphenols and phthalates level requirements.
In compliance with the General Product Safety Regulation (GPSR), Dark Yarn, and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 6595 Roswell Rd STE G PMB 4103 Atlanta GA 30328 or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.
Pairs well withs
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