The ornamental design for a saddle with a strapchannel, as shown and described.
FIG. 1 is a top rear perspective view of an ornamental design for a saddle with a strap channel;
FIG. 2 is a bottom front perspective view thereof;
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom elevation view thereof;
FIG. 7 is a front elevation view thereof;
FIG. 8 is a rear elevation view thereof; and,
FIG. 9 is a top rear perspective view thereof, showing the saddle positioned in flush contact on an underside of a duct, and a strap inserted through the strap channel of the saddle for supporting the duct.
The broken line showing of the duct and the strap in FIG. 9 is for the purpose of illustrating environment and forms no part of the claimed design.