What kind of method is the 'seamless flatlock (odramf) stitching' mentioned in the product description?

When seeing the unfamiliar sewing term 'odramf' in the description of socks or neck gaiters, customers ask this out of curiosity about how it differs from regular stitching and what advantages it offers.

[라이트기어하우스] Alpha Direct Neck Gaiter 90 Dusty Gray

[라이트기어하우스] Alpha Direct Neck Gaiter 90 Old Rose

[라이트기어하우스] Alpha Direct Socks 120 GrayBule

[라이트기어하우스] Alpha Direct Socks 120 Royal Blue

hmmm editorial answer

It is a sewing method that eliminates protruding seam allowances where fabric edges overlap, joining them flatly to reduce chafing when in contact with bare skin.

Seamless stitching is a technique that cleanly finishes fabric joints smoothly without creating protruding seams where fabrics meet. Conventional sewing overlaps two pieces of fabric and stitches them together, which easily creates seam allowances on the inside that press against the skin or cause friction. In contrast, flatlock (odramf) stitching butts the edges of the fabric together without overlapping them and weaves them with four needles to create a flat surface.

LITEGEAR HOUSE applied this seamless flatlock method to neck gaiters that wrap around the neck and socks that fit closely to the feet^[1]^[2]^[3]^[4]. Because the sewn areas do not protrude inside or out, the fabric seams do not scratch or irritate bare skin even during prolonged movement^[5]^[6]. Since this gear touches the skin directly, it is designed with a finish that minimizes even subtle friction for a soft and comfortable fit^[7]^[8].