New ! 

S1 Retro Lifer Helmet

Color: Black Matte Leopard Print (Hosoi Collab Collection) 

Dropping : Dec 1st 2025 

S1 Retro Lifer Helmet (also: S1 Lifer Helmets & S1 Lifer w Brim Helmet )

Fits 6.5" - 7.5" Hat Size

Hat Size 6 1/2" = S1 Lifer Helmet Size: X-Small  (Grey Sizing Liners)  20.5" head Circumference

Hat Size 6 5/8" = S1 Lifer Helmet Size: Small (Red Liners)  21" Head circumference

Hat Size 6 7/8" = S1 Lifer Helmet Size: Medium (Beige Liners) 21.5" Head circumference

Hat Size 7" = S1 Lifer Helmet Size: Large (Black Liners) 22" Head circumference

Hat Size: 7 1/8" = S1 Lifer Helmet Size: X-Large (Green Liners) 22.5" Head circumference

Hat Size: 7 1/4" = S1 Lifer Helmet Size: 2X-Large (Blue Liners) 23" Head circumference

Hat Size 7 1/2" = S1 Lifer Helmet Size: 3X-Large (Purple Liners) 23.5" Head circumference